Free Energy Calculators & Tools
Compare costs, calculate savings, and understand financing for hot water heat pumps, solar panels, batteries, and EV chargers across New Zealand. All free, no sign-up required.
Hot Water Heat Pump Cost Calculator
Compare installed hot water heat pump costs for your suburb, with brand comparisons and payback estimates across New Zealand.
Solar System Cost Calculator
Get indicative pricing for 5kW solar systems, export buyback rate ranges by retailer, and payback estimates for your area.
Battery Storage Payback Calculator
Calculate whether a home battery makes financial sense. Compare Tesla Powerwall, BYD, and more with real electricity rates and solar export data.
Suburb Energy Cost Lookup
Search any New Zealand suburb to see local hot water heat pump, solar, and battery costs. Includes climate zone data and regional pricing.
Financing & Incentives Guide
What actually helps in NZ: bank green home loan top-ups at 0-1% p.a. promotional rates, and why Warmer Kiwi Homes does not cover hot water heat pumps.
Embeddable Widget for Your Site
Add a free hot water heat pump or solar cost calculator widget to your website. Perfect for energy bloggers, installers, and real estate sites.
Looking for suburb-specific data?
Every tool uses indicative pricing data for suburbs across New Zealand. Search your suburb to get costs tailored to your location.
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