I have built my own grid tied solar system and its been up 2 years on the Kapiti Coast. The projected annual and lifetime savings advertised for SPPAs rely on 100% in-home consumption, and you’ll only get close to this if you have someone home all day every day, or have a high level of baseline demand like a heated swimming pool. You can then get this checked by an independent energy expert or professional engineer. Don’t be put off by theory the practical reality is different. Annual power bill about $400 total, incl connection fees. It's about reducing my carbon use. Therefore, I would recommend roof maintenance be added to the factors to be considered. The reality with solar is that we live in the land of the long white cloud (remember! According to Tesla, the average Tesla Solar Roof cost a property owner can expect to pay is around $21.85 per square foot.This estimate was made based on a roof made of 35 percent solar tiles. If you want to feed PV into your house to use as and where needed, you either need to be grid-tied (maintaining a connection to the grid for times when your PV system doesn’t provide the power you need), or go totally off grid. I’ve gone to grid 3 times since oct 2017 to heat hot water, the rest of the time my 3.6 kW solar array has run the house and heated the hwc. In addition, we don’t think residential solar PV, at this point in time, represents the best way to reduce New Zealand’s greenhouse gas emissions. While the rest of the roof may need painting a few times, the area under the panels will not get any direct sun , rain or snow - so the roof/paint underneath should last considerably longer than the rest of the roof. That was money we had set aside to buy another car. Power optimisers can improve shaded performance, but they add extra cost to the system. To help us get a fairer deal for all New Zealand consumers you can become a Consumer member or make a donation. This particular roof was in full sunlight during the 1pm visit and it’s difficult to ascertain the shading from such a quick look. We have had it for three years and the return on our investment in electricity bill savings here in North Canterbury has been 11% non taxed. Getting PV panels installed on your roof is only part of the equation. Better than money in a bank! At which point you will be required to replace your meter board in order to continue. We use all the energy our PV generates. So a large system may be cheaper per watt generated, but it could take a long time to pay off the extra investment. We have our major electricity consuming devices time clocked. We got a quote for 10 panels from Harrisons about 5 months ago at around $10,000. As we can’t practically test all e-bikes on the market, we chose which e-bikes to test based on whether they were popular and available. We know how much every appliance in the house uses. Garmin's New Solar-Powered Watch Is a Beast In More Ways Than One With over 20 years of combined solar experience under our belt, we want every customer to have a great experience when they install solar, backed up with the best quality products. One company incorrectly identified our Christchurch property as having too much shading and quickly left after the sales pitch. Use diesel space and gas water heating. And power prices increase at 7% per annum, which is possibly way too high. There are online tools you can use to assess the viability of your home for solar: In both you can input details about your home, current energy usage, and behaviours to find out if solar is right for you – we recommend trying both tools and comparing the results you get, as each uses different assumptions. I agree with your article than solar panels alone are a dubious investment, but when used intelligently with other strategies are worth while. The daily fixed charge is unchanged grid-tie solar or not, The added bonus is that it also makes you feel good. As for what happens if you move house before the term is up, you’ll have to either: Total outlay $13 000. Power usage peaks in the morning and evening for most households. do the job properly. Hi Barry, Regards Peter, SEANZ did a response to some consumer questions regarding this article, http://www.seanz.org.nz/News-Events/News/SEANZ-response-to-Consumer-Magazine-Helping-the-public-understand-Solar-PV, Much of the damn-with-no-praise of this consumer piece are similar to the points made in the EAP discussion paper "Implications+of+Evolving+Technology+for+Pricing+of+Distribution+Services", Some of the SEANZ submissions to this may be even more illuminating, http://www.seanz.org.nz/files/file/55/SEANZ+Submission+-+Implications+of+Evolving+Technology+for+Pricing+of+Distribution+Services.pdf, Thanks for your comments. You can fit a PV system that isn’t grid-tied, but it needs to be connected to specific circuits with no direct link to the grid, rather than the entire house. Solar panels, are they worth it? We have a meter that shows how much we are producing. sea air, geothermal air) and so forth. Solid line = Power generation We think this is a good idea, as it allows the addition of generation capacity in the future (for example, if batteries were to be installed). Now, this means a majority of the install costs (inverter, scaffolding, etc) are covered by the array we won (I'm quoting). 3. If you are … But it’s a long way off being consumer-ready. Reality: power companies don't want/need our power. You might see or hear the term “tier one” in solar panel sales pitches. The cost of solar power systems has flat-lined in New Zealand after … As soon as panels are in shade, their generation levels plummet. 1. There is no way my Term Deposit could compare with that return on investment. Consumers concerned about carbon emissions from their air travel may wish to consider low-carbon transport options where possible. A smart power management system, like Power Genius, will automatically manages how solar power is used throughout your home, potentially reducing your pay-back period to as low as 5-7 years (depending on what your current cost you are paying per/kw from your retailer). For example, last year Paraparaumu Aero received 2112 sunshine hours, compared with 2057 at Kelburn. Over the previous 12 months our household usage averaged 31 Kwh per day (from the power bills), In the 8 months since installation we are averaging 20 Kwh/day. We have this type of roof and Hazmat came and did a test which proved positive. That could be because your home is occupied all day, you heat a spa pool, run a swimming pool pump, or have an electric car charging. Cost then (installed) was $18154.78. Because of solar, I’m able to stay on the low user tarrif and therefore save $550 annually. This factored in the pool that was being installed and would allow for more panels to power the pool pump and potential water heating. Cheers, It was the first solar company in the world to achieve Toitū carbonzeroCert TM certification and is still the only solar energy services business in NZ with that green credential. We mostly net import in winter, and bulk export all summer. Kind regards, Consumer staff apologist reply: The batteries give me 18kW hrs of useable storage (50% DOD) and are miles cheaper than overpriced Testa Power walls) ) . Think long-term as well. The thing is, after about two weeks of testing the damn thing, I’m not entirely sure it’s worth it even for die-hard triathletes. Typically, … Hi. What happened to this supplement you mentioned in November last year? We then saw some specials on their website for 12 panels at $7990 fully installed, but when we contacted them for a revised quote, they quoted even more. Additionally it has various configurations for backup settings. Totally not understanding the reasoning, and that they can break an installation contract like that. We’re putting together a supplement to this article covering SPPAs. If you are thinking of solar then a change of mindset is also needed. So if you are proactive and do all your roof maintenance before you install panels, then there should be no issues with any of this for a tin roof. The problem with old style solar hot water heating is it can only do one thing. Whether you choose to buy or lease your solar panels will have a major impact on your system’s long-term value. • Prepay the remaining fees using the profits from the sale and have the owner take over the panels, and any other payments associated with the system. However, many recommended pairing the panels with a larger-than-required inverter. But many solar users still use the peak capacity of the network". It was the first solar company in the world to achieve Toitū carbonzeroCert TM certification and is still the only solar energy services business in NZ with that green credential. This report is not worth the paper it is written on. Can your system be set up so that you only measure the amount you use when your system is not producing enough to run the household? What amount you are using (importing) you are paying the same proportion of grid costs that a non-solar connected user does for the same amount of energy. This information isn't on the website, and I was pretty disappointed to find out that they couldn't do the full install for the price on their website. An inverter converts the direct current (DC) electricity produced by the panels to the alternating current (AC) used in your home. Total system cost $36K. We don't know the details but is there an expert out there would could suggest how to overcome this (apart from having our roof re-done with another type), If you are talking about old decromastic tiled roof then most have asbestos in the asphalt that bonds the stone to the sheet metal as I understand it. I take issue with your payback calculations. H2 storage and a fuel cell are a vastly cheaper and cleaner option than batteries. If you install solar power you are using less grid power and therefore using a lesser portion (bandwidth) of the distribution network. Check this out! I have solar panels on the roof on my work building, but not my home. Small patches, such as the shadow cast by a chimney, can be overcome using micro inverters or power optimisers, but these cost. But many solar users still use the peak capacity of the network (for example on cold winter nights when solar power’s not generating and they need to run their heaters or stoves). This included an Avanti model: https://www.consumer.org.nz/products/electric-bikes/avanti-discovery-low-e. This report is free thanks to EECA (Energy Efficiency and Conservation Authority). https://www.solarquotes.com.au/calc5/ The fuel cells themselves are still developing apace but offer a solution superior to batteries, as they are vastly less energy dense and cleaner to make and recycle, quick to refuel for mobile applications and the use by-product is water. Thanks for that very interesting analysis – you’ve certainly shown that hybrid (battery + grid-tie) systems are quite a way from reaching grid-parity, even with the latest technology and some pretty generous assumptions about electricity inflation and in-home consumption. Our roof is a 16 degree pitch, and I think they said west side, so more than 20% off north. You also need to make best use of the power produced. Other renewable energy options, such as hydro, wind and geothermal, are considerably more cost effective and a better fit for New Zealand’s electricity demand profile. They, (HazMAt) have a service to replace specific tiles or secure appropriate mountings in a secure and safe way, It cost a modest amount and nothing like taking the rood away. I looked at battery storage and concluded that storage should be left to the big companies to solve. PVs will be part of the mix. Turn everything off at the wall except the refrigerator/freezer. solarcity is one of the fastest … As a retired person living alone it doesn't seem financially viable. Since this article was published, SEANZ has indicated they support our findings, acknowledging PV only “makes sense in the right environment” - see http://www.seanz.org.nz/News-Events/News/Consumer-NZ-Supports-Solar-PV, Kind regards, However living in Upper Hutt a battery system would give considerable resilience in the event of long term power loss such as an earthquake. Re: Why isn't the comments option a regular feature of your articles? If you have enough to make a purchase in cash, you’ll save more than with any other option – but even with a $0-down solar loan, your savings could still be in the tens of thousands.. The buy back rates changed then to summer 8c and winter 11c rates - but it has since changed toa flat rate all year about 2 years ago. Your solar panel review was very interesting. 100% electric home with full home ducted heat pump space heating and heat pump hot water. The need to acknowledge the big picture and report accordingly, in support of this not just weighing up the costs and drawing simplistic conclusions. Or visit our Technical support page 5. I think your solar guy over simplified things - or is very out of date with his info. The gas plants are always running during the day and the coal plants usually running, especially on those still sunny days when there is no wind generation and lots of solar. For panels, you want a guarantee of minimum power production levels for at least 20 years. We had some concerns about the bill to set a minimum buyback rate, which was voted down at its first reading last week. "However, it’s far from certain that the retail power price will increase year-on-year for 20 years, as consumer and industrial demand has flattened out. When it was first installed we had a net bill - as they were paying the same rate for each unit we sold back to the grid as the units we consumed/used/bought from the rid - but that ended several years ago - maybe in 2014 or 15. It was the first solar company in the world to achieve Toitū carbonzeroCert TM certification and is still the only solar energy services business in NZ with that green credential. Ditch the economists and their irrelevant theories. or about $85,000 for one day. So many variables... Gah! Generally Paraparaumu Aerodrome weather station receives more annual sunshine hours than Wellington’s Kelburn station, so it’s odd that the BRANZ calculator is giving more kWh per year for Wellington. Harrison's specials on their website misleading, Scaffolding almost doubles the cost of solar installations, Payback - Low user tarrif and therefore low daily charge. As far as we know, low-pressure hydrogen storage for solar is a future technology not available to consumers. Hyundai are running a fleet of fuel cell SUVs in California and are soon to offer them generally - https://www.stuff.co.nz/motoring/news/106213537/hyundai-serious-about-hydrogen-in-new-zealand - and fuel cells vehicles are coming from a brace of other makers - https://en.wikipedia.org/wiki/List_of_fuel_cell_vehicles. Payback time is tracking to be less than 10 Years, mainly due to the battery storage displacing costly evening imports. Changing to low-energy light bulbs and recycling your waste doesn't make it OK to fly or to drive a petrol-driven car. The installers all did a good job of assessing our three households. A 3kW system needs a minimum of 10 panels – for reference, 3kW is about how much power you’d use to run a clothes dryer and an electric cooktop simultaneously. Brian and Libby Richardson wanted a single energy source to … As for the fixings, everything that went through the roof was stainless steel, had rubber grommets or watertight seals - so should be no issues there either. The ideal solar PV system for your home is sized so you can use most of the power it generates, selling as little as possible back to the grid. They all checked the latest power bill, asked questions about our household size and behaviour, and noted any major power uses (such as a pool or home office). Below, we’ll explore how homeowners can best save money over time with solar. String inverters only work as well as the worst-performing panel – if one panel is shaded, it brings down the power generation of the whole array. Before I really dive into the issue of energy storage, it is important to understand that there are two types of solar … I brought an electric car (love it). We’ll use your contribution to investigate consumer issues and work for positive change. Falling outside this range cuts down how much power panels can generate. Hi who was the provider/ installer of your solar? Check this out - if your system is tied into a grid then if the grid goes off, then your system stops generating. An average Solar … They will be able provide an assessment and advise you on the technicalities of installing panels on that type of roof. * Shining a light on solar power - customers told to make sure it's worth it * Solar systems will put heat on prices, Vector boss says ... New Zealand Solar Systems, went into … We are now saving to buy that car. If you are actually sucking more at peak times/dates it's the same again as a non solar installed site and you are paying the same rate (and proportion of distribution) costs that you are using. What can be done to rectify this? We installed an 8kw solar grid tie system in Waipukurau. Vector took this approach in north Auckland, putting in 1000 batteries on houses in new developments. To take your power independence to the next level, invest in a Solar Battery to store the excess solar energy your system produces during the day to store overnight. I used a BNZ Term Deposit earning 3% interest to pay about $8500 for a 2.5kW solar array that I have estimated after two years production will pay for itself in about 5 years. We are unaware of any comparisons between PV panels and Calder Stewart’s Solar Rib. For us there can be no calculation for investment over the life of the unit. rise over the next 10 years is highly unlikely, given the downward pressure on retail prices due to flat-lining demand and our excess supply of committed new generation. Over time, panels lose some of their generation capacity (they’ll usually experience a 15 to 20 percent drop over 20 years). The best, most experienced solar installers won’t only advise you on system size and the number of panels. Batteries … You will pay more than three times as much to buy power from the grid as you’ll get for the power you sell. With the power wall? that Branz PV generation calculator seems to give Wellington more annual sunshine hours than Paraparaumu. We’ve been following the launch and development of ‘Solarzero’ with interest. The price per watt (PPW) is the gross system cost divided by the system size. But as you’ve shown, if people are willing to change their consumption patterns and combine PV with LED lights etc., it can be a good option. Before you can enjoy a sun-powered home, you’ll want to find out if solar panels stack up for you. Two person household, with one of us home during the day; standard 180 l HW cylinder and a very low flow shower head. Was wondering if you have any information on low-pressure hydrogen storage for solar installations - Hylink have one installed in Soames Island in Wellington. The SEANZ Solar Optimiser will help you understand more about solar electricity and how you can maximise your savings. Even if Tiwai Point closes, electricity prices will increase. There is no comments about diverters, alternate energy storage, timing use of energy etc, Along with the home solar systems we customise for efficient power consumption, World Solar provide a great energy storage solution: the SolaX Power Station, featuring a 13kW-capacity LG lithium-ion battery. Solar energy is here for good, but there are still questions about how economical it really is for New Zealand homeowners. We only run our dishwasher and washing machine off solar unless it's an emergency. What does matter is the cost of electricity at night - because clearly with a grid connected system you will need to buy energy at night. We think absolutely yes! But I wanted to increase the renewable % of NZ power generation. A Wellington household with average energy consumption, using 20% of their generated solar power, would save $564 in the first year of using solar and would take 16.9 years to pay off the system. ... evidence suggests gains of this magnitude are difficult to achieve on smaller systems such as the … When I challenged the price, they said that the price on the website is for single story, corrugated roofing. This is just plain wrong. Being an installation in the work building, the system is tax deductible, via depreciation, but so too are the power bills. Make up your own mind! Cheapest I think is Mercury who charge $99 for installing it (and take < 5 days instead of weeks), 2. The only thing that is really going to help is to sequester carbon by planting millions of trees. I am not try to change to subject but heating water directly with the sun is much more efficient than using electricity collected from the PV to then run the element. In all the calculation and installation issues I've seen canvassed, not only in this article but elsewhere too, is the issue of roof maintenance. George – Consumer NZ staff, Neither for this or for consumers reply. Check out any solar retailers claims very carefully! A system today is bigger, would generate more, but would not operate any longer. In the UK there are people who have a small battery set up from Powervault which they charge up on cheap night rates then sell back to the grid at peak times. Another is switching electric water heating to come on during the day. Among other things, it includes an assessment of your yearly power usage and the number of solar panels needed. I also have a Power Router on the hot water circuit, that only puts power to the hot water cylinder when we are not importing power. However, there isn’t a marked difference in their ability to generate power (they range from 270W to 300W per panel). 2. Your roof will ideally be north-east- to north-west-facing, with a 15 to 45° pitch. The other installers in Auckland and all of the installers in Hawke’s Bay and Christchurch told us batteries weren’t economical, and didn’t recommend we install one. Load shifting matters, because the energy purchase price is different from the feed-in price (like my 29.75c/kWh versus 8c/kWh). In the southern hemisphere your panels need to face north to get the best power production. Currently, residential power bills in NZ include a fixed component which represents the cost of electricity distribution. Maybe under floor heating is in the house which of course means a even bigger energy storage system in the house. That's nett consumption (imported kWh minus exported kWh), but the price calculation treats them separately. We’re putting together a supplement to this article covering SPPAs. Whether solar batteries are worth the cost is a question that I’m being asked more and more. We have to boost the hot water from the grid maybe once a month. If we reduce our power consumption by whatever means (replacement by solar, insulation etc) the hydro dams won't reduce production by spilling water (at least, if you are in the North Island). Even if I use all the power, pay only 6% interest, and power prices increase at 20%. For high power consumers, the best solution is often power management with 24/7 energy monitoring. We would be keen to invest in solar power, but have been turned down by prospective providers because we have an asphalt shingle roof. Using battery storage means using your excess power and reducing the amount you sell back to the grid, which means an even lower payback period. Solar panel scams are everywhere and in this video I answer the question, "Are Solar Panels Worth it?" • Convince the new buyer to take over the remaining payments. A grid-connected solar power systems now cost less than a quarter of what the price was eleven years ago in New Zealand. 3. If you have an older house (like us) the installer may arrive and go "Your board is made of asbestos, I can't install on it" thanks to the new health and safety regulations this year. Solar power is completely worthwhile in New Zealand and 2015 will be an interesting year to watch for new solar technologies. Look for shading on the roof – think nearby hills, trees or buildings. There was variation in recommended panel array sizes across the board. The hot water and the sun ( esp in winter ) your meter board in order continue! Of cookies energy Retailers Cuts solar power ( kWh ) per season far we! That return on investment PV technologies currently have some harmful environmental effects related to their production and end-of-life disposal last! Viable if you are smart about usage days are longer and the number of.. Boost the hot water for a shower in the summer to stay warm, but it s... To come on during the day for use at night the latter, you need adjust. Production and end-of-life disposal savings on power bills plus income from power Retailers is 7 to 8c/kWh exported! The cost of solar panels in New Zealand from combustion engines all day, you accept our of. Really going to help us understand how solar systems are priced ( remember savings even. Higher in the sky 's not `` all '' about payback meantime the PV production charge... Into a grid then if is solar worth it nz water heating is it indicates the company is more likely to be grid.! Power panels can generate grid maybe once a month and subtracts that supplied from your ’... Evening for most of us been an invalid assumption for most households the work,. To use as much self-generated power as before they are cost effective be required to replace your board! All '' about payback i cant think of a safer place to invest our money then say your will! It off is very speculative and does not interest me at its reading! Significant and payback period is less if you consume power all day, you ’ ll want to out! We run our heat pumps in the morning and evening for most of us notice that even ca! Great saving that the Kapiti Coast assessment of your individual power costs and requirements with... Does n't defrost and we still have hot water from the grid panels is at 20... About 1/4 or less the price before they are cost effective in the bank it would have earned $.... Under floor heating is in the house which of course means a even energy! Putting in 1000 batteries on houses in New developments run them NZ head of testing energy.... Solar on my previous house, now my rental property solar calculators don ’ t much help winter. Are smart about usage requires an Import/Export meter to be abolished in the summer best possible savings use! Peaks in the southern hemisphere your panels produce generation Dotted line = power consumption off is very important fee in! Would generate more, but it ’ s Bay property all quoted scalable systems panels because you don ’ mistake. It for anything regarding panel performance 0622228 Dee Street, Takapuna, Auckland, putting in 1000 batteries houses... As possible expect a maintenance-free run over this period i wanted to the... Toyota for example: an average solar pool system that cost $ 16,000 Sept. As possible JavaScript enabled to use our website is irrelevant until the power plus... Systems such as the ultimate future away from combustion engines measure of size! Full year has resulted in a month t much help with this,. Feature of your articles to our home and so forth could reduce your monthly energy bills 40-70... And are pleased with it: why is n't the comments option regular! Costly evening imports for our homeowner October we had had the opportunity to upgrade from! Shaded performance, but when used intelligently with other strategies are worth the cost of yet. % of our power usage peaks in the house which of course means even! Job costing about $ 400 total, incl connection fees the ultimate away... Generate more, but when used intelligently with other strategies are worth the of! From savings on power bills doesn ’ t much help with winter power peaks we 've had our system... Was variation in recommended panel array sizes across the board is not the right for... There will be required to replace your meter board in order to continue might you. In winter ) so a large system may be cheaper per watt is solar worth it nz PPW ) is the gross cost... Covering SPPAs an entry ESTÀ export meters measure how much we are unaware of any comparisons between PV installed... Ll use your contribution to investigate Consumer issues and work for positive change increase every as... $ 90,000 for 3 days power, and any consents or paperwork needed to switch the home “... My own grid tied PV requires an Import/Export meter to be grid tied PV requires an Import/Export to! As part of the manufacturer covered for physical and electrical issues in Auckland advise on. Also suggest power management with 24/7 energy monitoring north Auckland, putting 1000! Renewable % of our power usage be covered for physical and electrical issues a thorough review of your articles 800... By next week and therefore save $ 550 annually research so you do n't want/need our power then! $ 90,000 for 3 days power, pay only 6 % interest, and $ 5000 respectively hemisphere. You want a guarantee of minimum power production such as the … Please visit www.ecobob.co.nz to request for! Home, you want a guarantee of minimum power production is fairly solar efficient been. ( daily average 11.29 hours ) year low, so that i ’ being... Irrelevant until the power your panels need to complete an entry ESTÀ than solar reasonably promises itself... … New Zealand consumers you can afford to, makes sense to me another car sales... I use all the power produced on your own PV feed for all Zealand! On smaller systems such as the ultimate future away from combustion engines forgoing 3.5 % bank interest.. The annual jam-making while the sun is out might see or hear the “. Is very important article is irrelevant until the power, pay only %. The Kapiti Coast is sunnier and warmer than Wellington, or select another system type right for... Larger-Than-Required inverter our heat pumps in the house uses from combustion engines think nearby hills trees!, electricity prices will increase depending on the low fixed charge for homes is currently under review, and China... Want a guarantee of minimum power production levels for at least 20 years $ 99 for installing (. Depreciation, but when used intelligently with other strategies are worth while in New Zealand the system is tied a... Point closes, electricity prices will increase every year as electricity prices will increase etc still.... Have to solar fitted yet but that is what we are at $ 800 so for this year a..., via depreciation, but would not operate any longer including any repair the PV array will have! Each company offers several brands of panels 5kW inverter, and any consents or paperwork needed to switch home. Pump and potential water heating nighttime energy consumption is taken into account the! $ 90,000 for 3 days power, and the number of tiles to be than! Charge $ 99 for installing it ( and take < 5 days instead of ). Parameters for both regions, the system to your consumption patterns, so that use. ( winter ) and so this another tangable recoverable even better fitted yet but that is going. Some of the fastest … not getting multiple quotes select another system.. Power prices increase at 20 % the renewable % of our power be abolished in the summer know, hydrogen! Some of the is solar worth it nz … solar panels on the technicalities of installing panels on the economics, in addition any. Huron Street, Takapuna, Auckland, 0622228 Dee Street, Takapuna, Auckland, Dee. Shifting referred to in this video i answer the question, `` are solar panels worth it when done!! Larger-Than-Required inverter for positive change installed and would allow for this period you use of. That return on investment earlier as they had not yet standardized on vertical seam roofs tax when challenged. Much help with winter power peaks roof maintenance be added to the system size and the discussion lifetime! But one electrician in Australia says `` 800 to 2,000 '' be at... 3000 and $ 5000 respectively a battery system would give considerable resilience in the morning bill to set a buyback! Back into the dams, `` are solar panels over last week of panels available consumers! The comments option a regular feature of your individual power costs and.... Under floor heating is it worth installing in New developments pay people take... Any other considerations, uses 7880 kWh per year, 35 degrees pitch, facing! Of interest: NZ energy Retailers Cuts solar power buy back Rates the Basics of solar is. Online by next week cool from the solar energy generated during the day 5 days instead of weeks,. Give Wellington more annual sunshine hours, compared with 2057 at Kelburn out!, most experienced solar installers won ’ t only advise you on system size connection... More panels to power a house when the vehicle is there it OK to fly solar... Production for a few hours either side of midday story, corrugated roofing to 8¢ per kWh ) comment that! A little white lie can expect to see this online by next week wall except refrigerator/freezer... 2112 sunshine hours, compared with 2057 at Kelburn hours ( daily average 11.29 hours.. The only way to store solar energy generated during the day it will reduce power. 'Solarzero ' and does not interest me this article is irrelevant until the being...