solar savings calculator
Solar Savings Calculator NZ
Find out how much you could save with solar panels in Wellington. Enter your monthly power bill and household details to get an instant estimate of your annual savings, system size, and payback period. Designed for New Zealand homes — powered by Weka Electrical.
ESTIMATE YOUR SOLAR PANEL SAVINGS
HOW MUCH CAN SOLAR SAVE YOU?
Use our Solar Savings Calculator to estimate how much you could save by switching to solar power. Enter your average monthly electricity bill, choose your roof direction and location, and get an instant breakdown of your estimated system size, annual savings, and how long it takes to pay for itself. Based on current NZ electricity prices and Wellington solar irradiance data.
Whether you’re considering solar for the first time or comparing quotes, this calculator gives you a clear starting point. For a detailed, property-specific assessment, contact Weka Electrical for a free solar consultation.
Solar Savings Calculator
*Estimates based on Wellington solar yield of 1,431 kWh/kWp/year (SolarScout 2026), Wellington electricity price of 35c/kWh variable plus ~$2/day fixed lines/supply charge (Calculate.co.nz), and average NZ buy-back rate of 12c/kWh (SolarScout). 25-year figures include ~0.5%/yr panel degradation. Solar cannot offset fixed daily charges. Actual savings depend on your roof, shading, retailer, and energy usage. For accurate pricing, contact Weka Electrical for a free assessment.
FREE SOLAR ASSESSMENT
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contact wellington's solar installation experts
Our solar savings calculator gives you a useful starting point, but every property is different. Roof angle, shading from trees or neighbouring buildings, your electricity retailer’s buy-back rate, and how you use power throughout the day all affect your actual return on investment.
That’s where Weka Electrical comes in. As qualified solar installers in Wellington, we offer free on-site assessments to evaluate your roof, design the right system for your usage, and give you an accurate quote with no obligation. Whether you’re looking at solar panels alone or panels with battery storage, we handle everything from design through to installation and council compliance. Get in touch with Weka Electrical today — your trusted local experts in solar panel installation across Wellington.