The average annual household energy consumption is ~8000kWh. Compare NZ power companies, compare features of different power plans and find the best power deals here at Power Compare. You will likely need to replace an inverter during this time - your results include this replacement cost. If you are not home during the day, you will need to use timers on your appliances. 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. The days selected are a Tuesday in mid-February and Tuesday in early June. What does a grant cover? The output calculations are estimates only. 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. Solar calculators also ask for your home location to determine how much sunshine is available. 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. Dr Alan Wood (Senior Lecturer in Electrical Engineering) and Dr Allan Miller (EPECentre Director) who co-invented the EECA energywise™ PV Solar Calculator. This tool assumes a timer is used to start the dryer, at most, once a day. The solar tool helps you assess the estimated financial return of solar electricity for your house, based on a number of assumptions which can be found in your final report. The generation figures are cumulative and in kWh/m². 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. 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. 1. This chart is provided by NIWA via its SolarView website.For more detail on SolarView, go to https://solarview.niwa.co.nz. Households with solar will still need to purchase electricity to meet their energy needs. Last reviewed: A hot water diverter monitors when excess solar energy is being exported and diverts it to heat hot water instead. 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. The basis of the calculator was developed by the EPECentre in response to increasing interest in solar electricity systems. NZ’s Leading and Largest Home Solar Company. Using the information you have entered, we have estimated the value of installing solar on your home. The benefits of solar power panels need to be carefully weighed against the costs, EECA says. All you do is plug in your location, average monthly power usage and average cost of each unit (kWh) or electricity. So, say no to rising power prices and start saving money now. Get quotes from the best solar companies. Ask a solar provider about the optimal system for your situation. Go to solar panel systems for industrial buildings. 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. Talk to one of our solar panel installers today for information on solar panel home installation. Select the image that looks most like the angle of your roof where the solar panels might sit. 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. In winter, household energy use is higher but solar generation is lower (than in summer). North-facing roof, 15° pitch. The solar tool uses certain key assumptions to estimate the value of installing solar on a home. Click here to learn why you should consider going solar. The tool will automatically consider any shading from your landscape (e.g. This solar power calculator is indicative only. 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. {{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 (%). pitch for NZ roofs is around 30° so select this option if you are unsure). 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