Solar Installers: 3 reasons Kiwi’s aren’t Installing Solar

Environmental groups such as Greenpeace are urging kiwi’s to install solar panels in the fight against climate change. As solar installers we believe there are a few reasons why New Zealand is struggling to meet Greenpeace predictions for the number of homes with solar in this nation.

Firstly, many kiwi’s still hold outdated perceptions regarding the cost of solar. Being solar installers for the better part of two decades we have seen the cost of solar dramatically decrease. A trend that continues to this day. Even as much as five years ago installing solar panels could take decades to even see a return on investment. However, over the last seven years the price of solar has dropped 70-80 percent.

The second reason kiwi’s may have tossed installing solar panels to the side is the price of batteries. This is fair enough, having a battery large enough to supply power to your home during the evening when the sun has set has been historically costly. However, as the global push for green energy ticks away, innovations in battery technology are driving the price down drastically. 


But, do you even need a battery in your home if you have solar? If self reliance is something you value then perhaps a battery is a must for you. However, solar panels can sell their power to the grid during the day while you are at work. Offsetting your power bill from the energy used at night.

The third reason people might avoid installing solar is because they plan on moving home shortly in the future. This harps back to the outdated belief that solar panels are a long term investment. Yet, a recent study from found that properties with a 3KW solar system made 4.4 percent or $35,000 more when selling on the real estate market.

Overall, there are many different reasons to install solar on your home, with some options more suited to different individuals. Call your local Solar Installers and have a chat about the best option for you. You can contact the team at ESolar online or give us a ring at 0508 449 274.

Different Forms Of Solar Power

Solar power is among the cleanest forms of energy. It’s also a widespread energy source in various countries, including New Zealand. If you’re keen on switching to this power source soon, learning a thing or two about how it works and how you can use it for your home or commercial property is essential. This way, you can find a suitable option and get the most out of your money.

Knowing What Form of Solar Power You Need

Harnessing the energy from the sun and converting it into a usable form is not as complex as it seems. That’s because nowadays, you have access to technologies like thermal solar, photovoltaic solar, and off and on-grid solar. Here’s a closer look at each solar technology.

Thermal Solar

A solar thermal power system collects and focuses sunlight on yielding enough heat and producing steam that later on generates electricity. A typical system used in this setup comprises reflectors and receivers. Other more sophisticated systems include energy storage, allowing you to have enough solar power even during a cloudy day. Essentially the storage accumulates energy from the collector during the peak hours of sunlight until you need to convert them into electricity.

Photovoltaic Solar

Some households in NZ use photovoltaic solar generation systems. Essentially, these work by using solar panels to absorb solar energy. In each panel you install, you have hundreds to thousands of solar cells which generate direct current. Then, using the inverter, the system converts DC into alternating current or AC electricity. The converted energy then either flows into the building to power your appliances or into the grid if it’s more than what you need.

Off and On-grid Solar Power

Besides choosing between how you can utilise solar power, it’s also equally important to decide whether you should opt for an off or on-grid solar system. Your decision can significantly influence several things such as:

  • How much electricity you can access
  • Specialised equipment you need to include in your system
  • Energy billing savings
  • Alternative options when the grid fails to supply enough energy

Be sure to consult with a trusted professional if you’re having a tough time deciding which option will work best for your household or business.

Hours of Sunlight in NZ

In addition to evaluating how you should use solar energy and the type of system to use, it’s also crucial to consider the amount of sunlight in your location. According to the latest numbers from ENZ, here are the average sunlight hours per year in certain parts of New Zealand:

CityAnnual Sunlight Hours
New Plymouth2100


You can use the numbers listed above as your guide when choosing a solar energy system for your house or commercial building. In addition, you should also consider the presence of large buildings in the area that might negatively affect the efficiency of your solar panels or solar thermal receivers.

We also recommend looking at the best spots to position your solar power generation systems so they can get the maximum amount of sunlight every day.

Solar Energy and Money Matters

Even with the rising popularity of solar power in NZ, many still doubt whether it makes a sound investment at all. Is it truly worth the money? The quick answer is: Yes, of course!

When appropriately installed, solar energy systems can help you significantly cut back on your expenses on electricity. If you use your system at total capacity, you can potentially save a thousand dollars a year after the installation. At this rate, you can earn back your investment in about eight to nine years.

Each system comes with varying costs, depending on how much energy you need to generate and the sophistication of the system you need. For solar thermal equipment, you can expect to pay around $5,200.00 + GST to $7,300.00 + GST.

If you want to utilise an off-grid photovoltaic system, the average upfront costs amount to around $7,200.00 Incl. GST to $49,990.00 + GST. Meanwhile, a residential grid-connected system can set you back by around $7,200.00 Incl. GST to $14,500.00 Incl. GST.

To get an accurate cost estimate, we recommend checking our price advisor. This will help you narrow down your options and understand which option might work best for you. You can also request a free quote on your chosen solar power system.

As for your financing options, you can try checking out sustainable energy loans from Kiwibank, a personal loan from companies like Q Card, or a mortgage top-up.

Get Your Solar Energy Generation System Installed Today!

Whether you’re interested in thermal solar power, photovoltaic cells, off-grid systems, or grid-connected systems, our team at Esolar can help you. We have various options to choose from, perfect for any size of household or commercial properties in New Zealand.

Get in touch with us today to check out our offers or inquire more about how you can benefit from solar power here in NZ. 


Knowing the Different Types of Solar Panel – A Quick Guide

With the increasing popularity of solar power in New Zealand, it becomes more important to know a
thing or two about it. For starters, it would be nice to learn the solar energy fundamentals, such as how you can harness the sun’s energy and convert it into a usable form for your household. Nowadays, there are three types of technologies used to capture solar energy. Among the three, the use of solar panels remains the most widely used option.
Essentially, you can think of a solar panel as an energy harvester of some sort. It has solar modules comprised of solar cells that can catch sunlight then shortly, convert it into usable power. Now as the solar cells in each solar module get energized, electrons flow, producing an electric current.


Types of Solar Panels and their Uses

Over the years, various types of solar panels have been made available to the public – each featuring varying pros and cons. If you’re planning to switch to solar power in the near future, knowing the differences between the solar panel types can help you decide the best option to install in your house or commercial space.

Generally, we classify solar panels into three, namely thin film, monocrystalline, and polycrystalline. Out of the three, the monocrystalline type is the top choice of many consumers. Let’s get to know a bit more about these three main solar panel types below:

  1. Monocrystalline

As the name suggests, monocrystalline solar panels comprise one pure silicon crystal. It’s the oldest type of panel, and it’s widely recognized for its efficiency in converting solar power into electricity. The main advantages of using this type of panel are its high energy yield, durability, and eco-friendly material. However, if you choose to use this type of panel, you will need to shell out a bit more money compare when using the other two options.

  1. Polycrystalline

Polycrystalline panels feature a mosaic of silicone crystals. They’re molted into one and shaped using a cast. They make the perfect option especially if you’re looking for a budget-friendly setup. Many residential properties make use of a polycrystalline panel to power their homes. The only setback of this option is its low energy efficiency. In fact, compared to a monocrystalline panel which has an energy efficiency of about 22 percent, this type only has around 15 to 17 percent.

  1. Thin Film

Unlike the two options discussed above, the thin-film type doesn’t come with a silicone cell outline. This is why, it’s flexible and ultra-lightweight, making it quite convenient to install on virtually any surface. This type also doesn’t cost a lot of money. However, it’s crucial to note that they’re quite short-lived and less efficient compared to monocrystalline and polycrystalline.

Choosing the right type of solar panel – Practical Tips

Now that you know a bit more about the key types of solar panels, let’s deep dive into how you can select the best option for your property. What factors should you consider? Should you choose a foreign or a local brand? What about the tier system?

When shopping for a solar panel for your property, here are the critical things you need to look into:

  • The energy efficiency – Select one that best suits your household or property’s energy demands. Don’t forget to take into consideration the roofing space available when you look into the efficiency of the panels.
  • The cost – Solar panels can be quite an investment especially if you’re serious about transitioning to a cleaner and greener form of the power source. Hence, it’s a good practice to think about the overall costs of the options available to you.
  • Product quality and warranty – Needless to say, you should spend your budget on a product that can last long and has at least a 10-year product warranty. And, make sure that the product warranty doesn’t tie you to a costly service contract.
  • Brand and make of the panels – Sometimes, it pays to note the brand and make of the product you will purchase. At times, there are brands that are made with better materials than the rest. Some are also more cost-effective compare to other options.
  • Tier system – The tier refers to the ranking of the manufacturers. It’s a system designed by Pike Research to determine how well a manufacturer controls the materials used. Tier 1 installers are at the highest level and they have their own R&D team. Their products are also well-known for the quality and designs and have at least 5-years of experience and background in the industry. To know the tier system of your chosen product, you can inquire from your chosen solar panel supplier or installer.

Solar power continues to grow more and more popular in New Zealand. If you wish to install a solar power system on your property, we at eSolar can help you find the right choice. Get in touch with us today for more information about a solar panel installation!

Don’t Fall for False Advertising When It Comes to Electric Solar

If something you see or read is too good to be true, then it may be so.  There are many companies offering enticing promos and discounts to consumers that a lot of us got caught by the tempting offer not knowing it is just what it is, something that will catch your attention and that ends with that. Nowadays, we all must not believe everything that we see or read.  Consumers must learn to look at the bottom of the story, question ourselves – what’s the catch?

New Zealand’s Solar Energy Industry

The solar energy industry in New Zealand has been on the rise these past few years.  A large percentage of electricity in the area has come from renewable energy and this includes power generated from the sun aptly called as solar energy.  In the mid-2010, solar technology in New Zealand has become affordable compared to earlier years.  This type of energy source is seeing albeit a slow but steady increase in both the residential and commercial market.  The price of getting this type of energy though is one of the primary concerns that may impact its sustainability. 

Advantages and Disadvantage of Using Solar Energy

There are several advantages and disadvantages in using solar energy, what matters though is what are your needs and wants and if using this type of energy answers to them. 


  • Renewable Energy Source – This type of energy source can be harnessed in all corners of the globe and is readily available every day. The sun will not run out unlike some energy source.
  • Reduces Electricity Bills – Because the energy needs are addressed by the solar power system, the electricity bill will definitely be lowered.
  • Diverse Application – Solar energy is not just an alternative source for electricity, it has many uses as well. One of these is used to heat water both for residential and commercial areas. In some areas, it is used to distill water and even power up satellites in space.
  • Low Maintenance CostsSolar energy systems (e.g Christchurch) need only to be cleaned therefore it has low maintenance cost plus it needs to be cleaned at least from a couple to several times per year only. There are cleaning companies specializing in solar energy systems and there are some systems that come with a warranty.
  • Technology Development – With the advancing technology, there will always be future developments in this industry. In the future, this energy power will be offered at lower cost and can harness more energy.


  • Cost – The initial cost of setting up a solar energy system can be high because you have to pay for the panels, inverter, batteries, wiring and installation. But with the developments made in this industry, prices may be lowered in the future.
  • Weather Dependent – Energy can still be collected even during cloudy or rainy days but of course, it is to be expected that efficiency can be affected.
  • Solar Energy Storage can be Expensive – With solar energy, it has to be used right away so if you are planning to use it during the night, one would need storage for the power collected. Batteries to store solar power can be quite costly but you would need it if you want to collect solar energy during the day for you to be able to use it at nighttime.
  • It Needs Lots of Space – The more electricity consumption you have the more solar panels are needed. If you are expecting a high consumption of electricity, you would need to make sure you have enough space in your roof where solar panels can be placed. If this is not enough, you would need to put in the backyard but it must be a place where it can get a lot of sunlight.

Common Mistakes when planning to use Solar Electricity Systems

As much as we all want to lower our electricity bills, there is always a hesitation when it comes to change. Changing the energy source used in a home can be quite daunting and aside from that, everybody hesitate because of the cost.  Putting off from the use of this type of energy may not immediately yield unfavorable result but the longer this is put off the more is spent in paying electricity bills.

Another thing that one should look into is not getting multiple quotes.  At the first opportunity that an installer will present the quote, you would tend to grab it immediately not knowing that there are other service providers offering more value for your money.  It is always advisable to check the competitors.

Another misconception is that the cheaper, the better. You would think that being able to grab the best deals for a solar panel; you may have hit the jackpot not knowing that in the long run this might get back at you. Using low quality panels means that they may have shorter life span or the quality may not be that great therefore needing fixings or even replacement earlier than anticipated.

Although, it does not say, but the most expensive thing in the market but it is always advisable to check the quality first and then add on to that the cost incurred.  Some people may also think that they can do the installation themselves just by reading the instructions but knowing the value a properly installed solar system can give, it is always best to refer these things to the professionals.

Getting Hooked on False Advertising

There are solar installation companies offering cheap prices for solar installation. Of course, with cost being one of the primary concerns of consumers they will definitely take into consideration anything that may save them some money.  With these offers, they are lured to grab the opportunity to avail of cheap installation cost not knowing that they may have cut on the cost but they must have cut on the quality as well.

Things may not immediately go down south but later on, problems may arise and you will be trapped in a binding contract where the installation company will not be held liable for any future problem.  You may end up spending more instead.

Quality of service may be okay but the quality of products used may be the one sacrificed to cut on the cost. Therefore it is always important to check every corner and weigh your options properly. This is a big decision to make therefore a little more time might be able to benefit you in the long run.

Why Choose ESolar?

With many companies offering the same kind of service, it is always best to choose properly.  Esolar has the experience to better provide the service giving their clients 20 years of experience.  The company has technicians who have the experience of installing a wide range of services for more than thousands of times throughout New Zealand and Australia.  With all these experience in their pockets, they are considered as one of the most trusted companies in the business.

A total energy solution that makes sure their clients are getting the best service that they can offer in terms of design installation and even after-care services.  Their team will not leave clients hanging in the backburner. Location is also a non-issue since the company has already opened its doors to a wide range of locations nationwide.  

Solar Electric Specialists: What To Look For Before Committing

From choosing the right solar electric system to determining the correct size of the photovoltaic solar panels and obtaining the necessary permits, going solar is complicated. You need a company that knows their stuff well and cares about your investment as much as you do. A solar electric system is a substantial investment and something that you’ll be living with for a long time.

Finding solar electric specialists is easy, but choosing a good one that meets your needs and expectations is a different story. To thoroughly vet potential solar companies, check if they fit the following criteria:

Licence and insurance

Obviously, the very first thing to check is whether the company has correct and valid licence and is appropriately bonded. In addition, you want to ask straightforward questions about the type of system that they think will suit your property and power consumption. You want to make sure they are going to install a customized solar array configuration that maximizes the amount of sunlight available in your location to save you the most money possible, not a cookie-cutter one.

Realistic quotes

You often get what you pay for. So if you are quoted a price that’s substantially less than most other similar sized systems, the equipment and/or the installation work you’ll receive might be of poor quality.

To check for quality, you can ask the company for similar projects they have done before and ask for client references. Are their clients satisfied with what and how the company delivered for the price they paid? A good company won’t find any problem providing client references, because they are confident about the quality of their work.

Solar panel certification

A certification indicates that the solar panels have met their advertised specifications. This can be done by an independent laboratory or by the company itself. If the solar panels are self-assessed, you can only rely on the company being honest with their claims.


Many companies will say what you want to hear in order to get your business. What you need is someone who can and will explain to you all the nitty-gritty of going solar, like how much you can save with a particular system or if your property is appropriate for solar.

Speaking of transparency, here are some important questions to ask potential solar system providers:

  • How does the system work in extreme weather conditions?
  • What are the solar panel efficiency and degradation rates?
  • How long will I recoup my investment?
  • What types of solar power systems do you carry and how do they differ?
  • Which system would you choose for your own property and why?
  • What’s included in your quote?
  • How does your warranty work?

Length of Warranty

Most solar power systems will last around 25 years. So you can expect your solar system to last a long time – typically long enough to pay for itself and give you returns. The industry standard for most installers is five to ten years, but some will offer up to 20-25 years workmanship warranties covering the lifetime of the system.  These extended warranties will add cost to the installation.

Solar systems require minimal maintenance, and very few things can go wrong since there are few moving parts. However, if something does happen, you need that warranty to cover for the maintenance and/or repair costs. But for a warranty to be honoured, the installer must still be operating. That said, you need to ensure that the company will remain in business for as long as your warranty is valid. How? The best way is to choose an established company that has a good track record and reputation because this is the type of company that will stay around for a long time.

Positive reviews

People leave reviews on companies for two reasons: they were disappointed or they were very pleased with the quality of product/service they received. If a company gets a lot of positive reviews from verified customers, you can take that as a good sign.

Of course, there are also those who leave nasty comments just because or use fake accounts to polish the image of the company. So you have to be discerning and intuitive when reading reviews.

If you need reliable solar electric specialists, you’re already in the right place. Ask us any questions and we’ll help you sort the best solar energy solutions for your home or business. Call our NZ-wide hotline 0508 449 274!

New Zealand’s Renewable Energy Resources

New Zealand’s energy production comes from both renewable and non-renewable sources. In 2016, about 85% of electricity generation came from renewable sources, marking the country’s highest production level in 35 years.

Renewable energy comes from sources that replenish naturally in a considerably short period of time. The country’s renewable energy supply particularly comes from geothermal, hydro (24%), biomass (17%), wind and solar power.

Aspiring for a future with a secure and resilient renewable energy supply, the NZ government has put into place research and development initiatives to economically grow its renewables supply. Electricity renewable percentage is trending up since the mid-2000s due to the continual market development, declining costs of renewable technologies and the downgrading of Maui natural gas reserves.

The country has significant advantages in electricity generation, given its vast renewable resources from windswept landscapes to volcanic features and generous sunlight hours. Currently, NZ has the third highest renewables percentage of total primary energy supply (TPES) in the OECD, next to Norway and Iceland.

Below are the types of renewable energy sources that make up the country’s supply:


New Zealand is located strategically between two tectonic plates, meaning it has vast potential for geothermal power generation. The Earth’s crust is thinner along faults, so the hot mantle is much closer to the surface. The heat generated and stored in the ground is what we call geothermal energy, which supplies 17 percent of the country’s electricity and 22 percent of our TPES.

Geothermal fluid, which is a mixture of high pressure water and steam, is piped from deep wells to a central generation power plant where it is turned into steam. The steam is what drives turbine generators to produce electricity. 

Since it’s not weather dependent, geothermal energy supply is consistent and reliable. However, careful monitoring and management of water and pressure levels in the power station are necessary to prevent land subsidence and depletion. This generation method does produce greenhouse gas emissions, but still at a relatively lower amount than the cleanest natural gas plants.

Hydro power

Hydro power generation is the backbone of New Zealand’s electricity system, contributing more than half of our electricity supply.

Hydroelectricity plants rely on gravity to drive water from nearby streams, rivers or dams through turbines, which drive power generators. The process is fast and gives off no greenhouse gases, however there are environmental repercussions to building dams.

The challenge with hydro schemes is New Zealand’s lack of water storage capacity and variable water supplies. Fortunately, the growing wind farms and solar power systems are easing these concerns.


Wind turbines harness wind power and convert it into electricity. With the country’s vast landscapes, wind-powered generation is a very promising form of electricity generation. It is one of the most environmentally friendly methods as well, given that wind turbines don’t produce greenhouse gas emissions during operation. That being said, wind energy only accounts to two percent of New Zealand’s total renewable energy supply.

Three quarters of Kiwis support wind farms, but there are objections to the sight of them and the noise they create. This has led to stricter building codes for farms as well as noise standards for turbines to ensure quieter operation.


We use either passive or active solar power systems to harness the sun’s energy. Passive systems use architecture and engineering to design homes to absorb solar radiation for heating spaces. Active systems use photovoltaic (PV) solar panels to generate electricity as well as solar water heating devices. Solar panels consist of light-sensitive cells that absorb sunlight and irradiance to produce electricity.

Solar electricity is silent, unobtrusive and sustainable. It is the underdog among all of New Zealand’s renewable resources. While it’s totally free and can be used all around the country, it currently amounts to only 2 percent of the total primary renewable supply.

The benefits are definitely there, but there are apprehensions to its uptake primarily due to the high capital cost of solar power systems. Another hindrance to its utilisation is that solar PV is branded as a ‘disruptive technology’ because it challenges the conventional model of electricity provision. However, newer technologies and price reductions in solar PV equipment are making solar power more efficient and affordable to own. And the ever-increasing prices of electricity are pushing more Kiwis to adopt solar as an alternative power generation method.

In fact, there are a number of island resorts that installed their own off-grid solar power plants to cut costs and gain energy independence. On the other hand, householders and property owners prefer grid-tied systems as they need backup power from the grid when the solar panels aren’t generating power at night.


Bioenergy is fuel made from biomass feedstocks, which are renewable organic materials such as trees, residue wood, crops and by-products like straw, manure, sewage, etc. This type of energy contributed to 7 percent of our TPES in 2015.

Biomass can be burned to provide process heat, which can be used directly or used to generate electricity. Residue wood can be burned to produce heat for domestic use, although this practice is used primarily in the timber industry.

Alternatively, biomass can be turned into liquid biofuels for use in transport. The most common types of biofuels are bioethanol (a type of alcohol fuel processed from waste and organic by-products) and biodiesel (made from animal fats and vegetable oils). Biofuels help make our vehicles cleaner and gentler on the environment.

The current issues with bioenergy are the costs of gathering and transporting biomass feedstocks. Nevertheless, recent innovations are making it easier and cheaper to produce biofuels on a mass scale.


Solar Solutions from New Zealand for New Zealand

It’s the best time for a more sustainable home. As you are well aware of, electricity prices are continuously rising each year, while the cost of solar energy systems have been dropping.

Switching to solar today makes real sense. This goes without saying that you need the right solution to meet your specific energy requirements. The good news is you don’t have to go far and wide to search for a reliable solar equipment supplier. The best solar solution or your home or business can be met by Solar Electric Technology Ltd, a home-grown solar specialist.

Solar Electric Technology is 100% Kiwi-owned and operated. We have offices and installers across main centres in New Zealand. Our world-class systems are designed and engineered right here in NZ, and everything is tested locally as well.

What does this mean for you?

This means that the system we will install for your home or business will perform optimally in our local conditions. Optimal performance means maximum power generation and efficiency, which in turn means you’ll get the best return for your investment.

Whether you want to power your home using solar or you want to save on your hot water heating costs, we offer total energy solutions to meet your requirements.

To make your solar upgrade stress free, we do everything for you:

  • System design
  • Installation
  • Plumbing
  • Electrical certification
  • After-sales service

In some cases, a building consent is required for installing PV panels. For example, if you are planning to install PV panels as your roof cladding. You may also need a resource consent if your property is in a special interest or heritage zone or if your roof-mounted panels exceed height-to-boundary restrictions. But don’t worry because we’ll also take care of this on your behalf.

For residential properties, most of the systems we install are grid-connected PV solar systems. While it can generate most of your electricity demand, it allows you to draw power from the grid when your solar generation is not enough. If you generate more than you use, you’ll be able to export your excess power back to the grid and get paid by your utility retailer. The systems we design are scalable so you can add more PV panels over time as your energy demands increase.

On the other hand, some of our clients ask for an off-the-grid solar system which makes them completely independent from the national grid. It costs more than a grid-connected system since it requires a few additional components such as batteries and backup generators. Neverthless, they aren’t affected by power outages or increasing power bills. It’s also an ideal solution if you are located far from the electricity lines, as connecting to the grid becomes a more expensive option.

Solar-powered hot water heaters are also popular among Kiwis. We’ve installed hundreds of advanced technology evacuated tube solar collectors that are ideal for high hot water usage.

If you want to know what the best solar solution for your home or business is, call us on 0508 449 274 for an initial consultation. We will give you a quote for FREE.


Average Sunlight in New Zealand

According to Statistics NZ, on average, most of the country received between 1,672 and 2,098 hour of sunshine each year from 1972 to 2016. Based on the 2017 Annual Climate Summary by the National Institute of Water and Atmospheric Research (NIWA), the major cities of Auckland, Christchurch and Wellington receive more than 2,000 hours of bright sunlight every year, with the most sunshine hours exceeding 2,600 in the wider Nelson region.

January receives a mean over 200 hours of sunshine due to longer more settled days, while June receives a little over 100 hours due to shorter days and wintery weather.

Turning sunshine hours into energy savings

With solar PV technology, you can harness the sun’s free energy and use it to power your home or business, rather than buy power from the grid. More sunshine hours could mean more dollar savings in terms of energy costs.

Solar generation currently makes up 0.2% of the country’s total energy supply. But price reductions in solar PV equipment have seen an increase in demand with homeowners and businesses.

According to this study, if the trend of falling PV prices continues along with rising electricity spot prices, regions such as Nelson-Tasman (with high irradiance) as well as Auckland, Northland and Taranaki (with reasonable irradiance and higher spot prices) stand to benefit the most from solar PV.

 Why go solar?

One could argue that New Zealand is already rich with renewable energy from wind turbines and geothermal plants, so why the need for solar?

Well, solar PV technology is unique among other renewable energy technologies. It has a massive potential to decline in cost and improve in performance at the same time. In fact, the average turnkey price for a standard PV system of 3kW has dropped from NZ$40,000 to NZ$9,000 since 2009.

Buying power from the grid costs you around 26c to 30c per kilowatt hours, depending on your region. On the other hand, generating power with solar costs about 26c to 28c per kWh (relatively less than it costs five years ago), and this number continues to fall.

PV currently costs more in $z/W or c/kWh than other renewable energy sources. However, it remains an attractive alternative because of its modularity, ease and speed of installation and suitability for a wide range of end-use applications and sites.

According to the Ministry of Business, Innovation & Employment, the potential value of solar is higher than its costs alone would indicate. Although its output is weather dependent on an hourly or daily basis, the power generated is well predictable over longer periods.

Solar PV is a long term investment. It might seem that solar provides little economic benefit at first glance, but the technology actually pays back after 5 to 7 years and continues to save you money for another 15 or 20 years.

To make your investment worthwhile, it makes sense to compare the generation capacity of a solar power system you are considering to the number and intensity of sunshine hours your location receives throughout the year. Our solar experts will be able to help you figure out the potential costs and savings of installing solar for your home or business.

Request for a free quote or call 0508 449 274 today.

Solar Installers All Over NZ

If you like “One-Stop” shops, then Esolar is the company for you. Choosing to invest in a solar system for your property can be overwhelming. Having an expert take you through the whole purchase and installation process from the initial quote to you sitting back and enjoying “free” energy can really help you enjoy your decision.

Esolar have been installing solar systems for over 20 years. During this time, our technicians have installed over 1,000 solar power, solar hot water, wind, mini-hydro systems throughout New Zealand and Australia. This experience is appreciated and we have become a trusted name in this industry.

Esolar offer total energy solutions for homes and businesses. We enjoy working with you to ensure your solar system meets your energy needs. We provide system design, installation and after-sales service.

We take pride in our customer service and to this end we have created the easiest quote system we could think of via our website. Simply click on the “Free Quote” tab on the menu across the top of the screen. Each product section has a form that can be filled in and submitted for a quote. There are also system specifications and downloads for obtaining a building consent and drawing the system into the plans.

Once you have clicked on our “Free Quote” tab, select what type of system you are interested in, select what kind of environment it will be installed for – residential, commercial, agricultural (or we’ve even put a handy “I am not sure” option), complete the remaining questions regarding where you would like your solar system installed and your contact details and hit “send”. It is as easy as that.

Unlike some of the smaller solar companies we have offices and installers throughout all of the main centres in New Zealand. No matter where you are in the country there is an Esolar office near to you that can provide you with a full service solar technology solution. When you make an enquiry through our website your enquiry will be redirected to one of our branches in Auckland, Canterbury, Hawkes Bay, Manawatu/Wanganui, Otago, Taranaki, Wairarapa, West Coast, Bay of Plenty, Gisborne, Marlborough, Nelson, Northland, Southland, Waikato or Wellington.

One of our consultants from our closest office will prepare a quote based on your information and if any further information is required will make contact with you before finalising the quote to make sure all bases have been covered and the best products are quoted for you.
So when you’ve made your decision to invest in solar and want to deal with the best – contact Esolar. We pride ourselves in our communication and professional staff. We work with you and for you to get you the best solar system for your property with the least hassle possible.

How Sustainable Is Sustainable Energy?

If something is to be called “sustainable” it conveys an understanding that it is able to be maintained at a certain rate or level. As fast as it is used, it is replaced. When we talk about sustainable energy it can make many people feel quite excited that they won’t be contributing to the detriment of earth’s natural resources. But, really, how sustainable is sustainable energy?

First, we must agree on what types of energy are commonly understood to be “sustainable”. The common types of energy that are referred to as being sustainable are:

  • Biomass
  • Solar
  • Wind
  • Hydro
  • Tidal
  • GeoThermal

Sustainable energy has an opposite. The opposite of sustainable energy is called Fossil Fuel. Fossil fuels are a natural fuel such as coal or gas, which has been formed in the geological past from the remains of living organisms. Fossil fuels are slow to develop and time, lots of time, is required in order to have reserves for humans to use.

Whereas in the past life seemed to move at a slower pace, slow and life rarely go hand in hand now. Time is always of the essence and when people want things they want them now, there is no time to wait for geologists to find the next reserve to tap into.

This is where sustainable energy is advantageous. Where fossil fuels have served mankind for centuries, the worry we currently have is how far these fossil fuels can be used considering the fact that they are fast being depleted. Often case when fossil fuels are used, they cause some serious environmental problems which have been shown to contribute to global warming and climate change.

In order for an energy source to be considered “sustainable” it needs to fit within three parameters – environmental, social and economic sustainability. This means that the energy source needs to be able to:

  • Be naturally replenished.
  • Increase its’ efficiency by way of technology
  • Be available long term

Let’s look at the various types of energy that have been identified as “sustainable” and see just how sustainable they are:

Solar Energy
This form of energy almost always comes out on top when looking at sustainable options. Solar energy provides power in two ways: light and heat. Not only can we harness its energy for our day to day lives but solar energy can also be used for plant generation and to help us grow food. Because of this, solar energy systems generate confidence and ensure that how we live does not cause any further harm to our environment.

Wind Energy
Wind turbines can produce vast amounts of power by harnessing our natural resource of wind. Although a relatively new form of sustainable energy, many large companies have started to invest into wind turbines in order to tap into this energy source. In the future, wind power will be able to be on sold to people to power their homes and possibly even industry will be able to be powered. Wind power will allow fossil fuel exploration to stop.

Geothermal Energy
New Zealand is a great country for geothermal activity. The amount of power lying beneath our tectonic plates is undetermined but when you look at places like Rotorua, it is obvious that this is an energy source that we could draw from more so than we currently do. Geothermal energy is captured by installing geothermal power stations that use the heat coming out from inside earth and use it to generate electricity. There is a limitation to Geothermal energy in that it can only be harnessed in areas that have high seismic activity, however they are environment friendly and can produce energy throughout the day.

Tidal Energy
With around 14,000 kms of coastline, New Zealand is literally surrounded by water. On top of this, around 70% of the earth is covered with water. When tidal energy is harnessed correctly, it can be used to power millions of homes. The power of the waves can be used by oceanic thermal plants to convert the kinetic energy in the waves into mechanical energy. Once this has happened the mechanical energy can then be converted into electrical energy for use in homes and industry.

Biomass Energy
Biomass is produced by burning waste. It’s a form of recycling. Biomass energy can be created by burning wood, timber, landfill and agricultural waste. As humans continue to create waste, biomass energy is completely renewable. There is technically no production of carbon dioxide when biomass is made. Yes, burning items causes carbon dioxide but this is compensated for when the plant creating the biomass energy reuse the carbon dioxide created and produce oxygen. The creation of biomass energy also helps reduce the amount of rubbish that ends up in landfills.

Hydro Energy
Hydro Energy, or hydroelectric power, is very common. It is used to generate power in most parts of the world. The energy found in rivers and waterfalls is captured by directing the flow through turbines which generate power. This power is then on-fed through power lines throughout the country to power homes and industry.

Really, any form of “sustainable” energy is our best form of energy to use. Unless the sun stops shining, the moon stops influencing tides, humans stop creating waste to be used for biomass, the geothermal fields dry up and the rivers stop running, sustainable energy is sustainable for the next generation and for millennia.