The benefits of solar power panels need to be carefully weighed against the costs, EECA says. We’ve built an interactive tool that works out how to calculate a solar panel system installation for your home, commercial or industrial building. What does a grant cover? A new calculator developed by New Zealand experts will give people interested in solar electricity a useful estimate about whether solar will be cost-effective for their household. Some solar calculators assume a wattage for panels, while others ask you directly. If you want to install solar panels, you should weigh up the potential costs against the potential savings. This chart is provided by NIWA via its SolarView website.For more detail on SolarView, go to https://solarview.niwa.co.nz. Solar Calculator. It doesn’t factor in the other reasons you might want to install a solar system, such as energy resilience, environmental benefits or social responsibility. However, depending on when you use power, different system configurations (e.g. This will require an electrician to install either a hot water diverter or a timer on your hot water cylinder. Running costs calculator; Solar tool; Tyre pressure tool; Water heating systems tool; ... Avoid power hungry appliances. The solar tool uses certain key assumptions to estimate the value of installing solar on a home. Acknowledgement: This tool was developed by the EPECentre, University of Canterbury. Based on our research, our calculator factors in potential generation, household consumption, and potential energy exports, as well as current and future pricing scenarios. Visit our twitter page; Visit our linkedin page; Sign up to our newsletters; Terms & conditions If you’re interested in learning more about installing a solar power system for a factory, warehouse or farm – get in touch below. NZ’s Leading and Largest Home Solar Company. Households with solar will still need to purchase electricity to meet their energy needs. A new calculator developed by New Zealand experts will give people interested in solar electricity a useful estimate about whether solar will be cost-effective for their household. Your panels will be less efficient in producing electricity if they will be shaded by trees or neighbouring buildings. A timer automatically switches hot water on and heats it, regardless of whether there is excess energy or not. 3. Select the pitch which best represents your roof (the most common Ask a solar provider about the optimal system for your situation. This tool assumes a timer is used to start the washing machine, at most, once a day. east and west-facing combined) can be more optimal. This increases how much you save on your electricity bill and improves your return from your solar investment. This tool assumes a timer is used to start the dryer, at most, once a day. All you do is plug in your location, average monthly power usage and average cost of each unit (kWh) or electricity. Each sun path (coloured line) runs from right to left, consistent with the path of the sun (East to West). Using the information you have entered, we have estimated the value of installing solar on your home. You will need to find out if you are on a controlled circuit (in which case, you will need to change your electricity plan) – you may find this information on your power bill; if not, talk to your electrician. The REDARC Solar calculator selection tool . Contact us today to get a quote on a solar panel system for commercial buildings, brick and mortar stores, malls or large premises. EECA and Standards New Zealand are supporting the shift away from fossil fuels by developing a best practice guidance document on high-temperature heat pumps. Electricity use in our house is usually low during the day. This is how long it would take to recoup the cost of solar, through electricity cost savings, if you ignore the interest you would earn on money in the bank (if used to pay for solar) or interest paid on a loan. • Mid 2016 EECA requested SEANZ review and endorse a solar calculator being developed to help consumers understand the economics of solar power So we’ve dedicated ourselves to helping NZ homes and businesses equip themselves with the best renewable energy solution; solar power. surrounding hills) but it does not consider shading from adjoining structures (e.g. 4/44 Sunnyside Road, Sunnyvale, Auckland 0612, Auckland       Taupo                Whangarei, Hamilton       Wellington        Palmerston North, Tauranga       Christchurch     New Plymouth, Rotorua          Dunedin             Hastings, Copyright 2019 Solar Power Calculator | All Rights Reserved | Designed by. Occupied by a family with three kids, no one home during the day. Solar panels are generally installed at an angle, so if you have a flat roof, select 30°.This information gives us Get quotes from the best solar companies. How to choose solar panels - simplified east and west-facing combined) can be more optimal. The inverter transforms DC current to the AC current used in NZ. We believe that this is unacceptable. This is a really simple calculator that recommends you a solar system size based upon power bill data. You’ll be asked for your address and your electricity use, and the price you pay - so you'll need to have a recent electricity bill on hand. The industry standard is that solar power companies will do the research for you, finding the best solar panel brands and models for your unique solar power system set up. Funding using savings (forgoing 3.5% bank interest). You will see that performance drops over time, with a regular drop of performance continuing over the life of the system. Solar panels work most effectively when they face the sun (north-facing). This analysis is over 25 years. Electricity use in our house is usually high for more than five days a week. This tool takes into account the ongoing costs of purchasing the system (future interest charged or interest Your payback from solar (the time it will take you to recoup the upfront costs of the solar system from savings you make on your electricity bill) depends mainly on three important factors: This tool relies on average household electricity use profiles. Products & … This solar power calculator is indicative only. The EECA energywiseTM Solar Calculator is a free, easy to use tool to evaluate the benefits of roof-top solar for domestic households. In winter, household energy use is higher but solar generation is lower (than in summer). It also won’t take into account high daytime solar electricity use for things that use a lot of power, like EV charging, hot tubs, spa pools, and swimming pool heaters. Be sure to discuss with your electrician how to reduce the risk of legionella bacteria in your hot water, which can lead to serious illness. Last reviewed: This is a simple payback calculation, factoring in only how long it could take to pay back the capital costs of the system from electricity cost savings, not factoring in the costs of borrowing. Recognising these paybacks Smart Energy Solutions, along with EECA, local & regional Councils, Community Trusts and some leading banks, have a range of subsidies and finance options to make insulation, heat pumps, ventilation and other energy efficiency measures affordable now so … In these cases, we recommend consulting with a solar provider directly. Find and compare energy efficient models. This paper details how the calculator works, the assumptions it is based on, and the information required for it to work. Electricity Price Rise Impact ... Disclaimer: These output calculations use sunlight data supplied by the New Zealand Bureau of Meteorology from most New Zealand weather stations from 1990 to now – as an average. If you don’t think you will consistently use these appliances during times of the day when it is sunniest (when solar electricity is generating at its highest), leave the boxes below unticked and hit Next. If you think you’ll install batteries with your solar system, or you use a lot of electricity during the day, please take this into account when using the tool. Our solar panel installation contractors can equip you with a solar power system that satisfies your power supply needs and that your community or local power grid. In summer, most households with solar will sell some electricity to the grid, as solar generates more electricity during daylight hours than is used in the home (the price you get for this electricity is normally much lower than the price you pay for electricity). ... New Zealand Green Building Council; EECA sites. 25 Nov 2020. However, depending on when you use power, different system configurations (e.g. Select the image that looks most like the angle of your roof where the solar panels might sit. We are one of New Zealand's most experienced commercial solar electricity integrators and have direct relationships with all … The estimated results below are based on the cost of the system installation, the cost of a replacement inverter after 15 years, and the cost of a diverter or timer (if selected). Select the image which most closely matches the direction of the roof where the solar panels might sit. The estimated results below are based on the cost of the system installation, the cost of a replacement inverter after 15 years, and the cost of a diverter or timer (if selected). Talk to one of our solar panel installers today for information on solar panel home installation. This is the amount of money you would save on your electricity bill in year one only - your savings in subsequent years could differ. Use the form below to share questions or comments with us. 2. If you are not home during the day, you will need to use timers on your appliances. Click here to use our interactive solar power system calculator or to find your local solar panel technician. Solar System Output Calculator Postcode 6149. The key assumptions used in this tool are below. Electricity (electric heaters, heat pump etc), Electric hot water cylinder - with a timer or hot water diverter. 5. On this page we discuss the specifics of solar panels, giving full access to the finer details. Residential solar panel installation is simple with the help of one of our solar panel engineers. EECA will encourage people to use the calculator as the first step in making any decision about investing in solar panels for your home. Cash flow includes purchase and installation costs, money earned from selling excess electricity to the grid, and savings on your electricity bill from using electricity your system has generated. It doesn’t take into account the costs and benefits of batteries, which can change the way you use (and the economics) of solar electricity. This chart shows the expected performance of the solar electricity system. EECA spokesperson Allen Davison says EECA’s role as an authority is to give independent advice about emerging technologies like solar which have created considerable public interest and debate. Generation is highest in summer, when the sun is higher in the sky, and lowest in winter. Let’s consider the Mitsubishi Electric online calculator for solar in New Zealand. 0800 358 676. 04 November 2020. The generation figures are cumulative and in kWh/m². We'll use a default amount of 9 cents per kWh, We'll use a default amount of 0 cents per day. Click here to find out about the solar power system types. The way you answer these questions will impact your final results. A record of engagement between EECA and SEANZ is provided to highlight SEANZ’s commitment to working with EECA to ensure its online calculator is fit-for-purpose. This is how long it would take to pay off your solar investment from a loan or savings, through electricity cost savings.This figure takes into account the interest you would pay on a loan or the interest you would lose on savings, depending on how you purchase the system. Contact EECA; Sign up to our newsletters; info@eeca.govt.nz. This chart shows the expected energy generated from solar and your estimated electricity use. The EECA calculator uses this data to assess the economics of installing solar photovoltaic (PV) systems. This question helps us work out how much sun your panels would get. you forgo). We also strongly recommend talking to your electrician about how to manage your hot water, to make sure you have enough when you need it. Use diesel space and gas water heating. We believe that this is unacceptable. At the end, you'll get a detailed report estimating how much value you could get from solar. The first step is a free, no-obligation visit from one of our home energy experts. Supplied by SEANZ (the official solar association of New Zealand), this solar calculator can help determine the annual savings and payback period you can expect from a solar power system in your unique location. Visit www.epecentre.ac.nz for more information. *Your solar savings results are an estimate only, based on the basic information required in this calculator. Solar electricity systems (also known as photovoltaics, PV systems, or solar panels) convert sunlight into electricity, and are a form of renewable energy generation. Consumer NZ is warning it can take decades for a solar power system to pay for itself. Currently pays 26¢/kWh, uses 7880 kWh per year. A solar system can be expected to last 25 years or more although you may need to replace an inverter during this time. Welcome to SPCNZ - the leading solar power installation company in New Zealand. Go to solar panel systems for industrial buildings. pitch for NZ roofs is around 30° so select this option if you are unsure). The output calculations are estimates only. Please treat this tool as a guide to assist in your decision-making. Solar calculators also ask for your home location to determine how much sunshine is available. If you don’t have a recent power bill, click here for estimated low-user electricity tariffs for your region. Solar panels work most effectively when they face the sun (north-facing). Using the information you have entered, we have estimated the value of installing solar on your home. {{model.financial_details.time_to_pay_back}}, {{model.estimated_annual_usage | number}}, Estimated energy generated and required over a year, Your estimated solar generation over time, ${{model.financial_details.money_saved | number}}, Credit from solar electricity sold (first year only), ${{model.financial_details.power_credited | number}}, {{model.PanelBearing | roofBearingConverter}}°, {{model.PromptPaymentDiscount | discountMapper}}, {{model.PricingScheme | pricingSchemeMapper}}, {{model.AtHomeStatus | atHomeStatusMapper}}, {{model.TypeOfMainHeating | mainHeatingTypeMapper}}, {{model.TypeOfWaterHeating | waterHeatingTypeMapper}}, {{model.loadShiftReportData.washingMachine}}, {{model.loadShiftReportData.clothesDryer}}, Total purchase & installation cost (inc GST), ${{model.SystemInstallationCost | number}}, {{model.DefaultSystemSizeIfNoQuote | systemSizeCostMapper: model.systemQuotes:"Size" }}, ${{model.DefaultSystemSizeIfNoQuote | systemSizeCostMapper: model.systemQuotes:"Cost" | number }}, {{model.energy_plots.total_generated | number}} kWh, {{model.energy_plots.energy_generated_used | number}} kWh, {{model.energy_plots.energy_generated_excess | number}} kWh, {{model.energy_plots.energy_required | number}} kWh, Annual operation and maintenance cost ($), Annual electricity retail price adjustment (%). Typically more solar electricity is generated during summer than winter. So, grab your power bill and let’s get started. The solar tool incorporates solar data sourced from the National Institute of Water and Atmospheric Research (NIWA) through its SolarView service. Running costs calculator. Level 1, 25 Exmouth Street, Eden Terrace, Auckland 1021 0508 2COMPARE ( … 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. Click here to learn why you should consider going solar. Based on those two values, they can estimate the system size in kilowatts. If you don't know the amount, leave this field blank and we'll assume a cost of $1000. Now we’re going to ask some questions about whether or not you could change the way you use common household appliances. 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