Solar Energy Calculators — Green

Compare utility electricity rates including TOU, tiered, and flat rate structures.

Estimate geothermal heat pump installation and operating costs vs conventional HVAC.

Compare lifetime costs and efficiency of heat pumps versus gas furnaces for your climate.

Calculate payback period for home battery storage from electricity rates and usage patterns.

Estimate where your home energy is being wasted and potential savings from improvements.

Calculate solar net metering savings from surplus generation and utility buyback rates.

Size a complete off-grid solar system from daily energy use, battery days, and sun hours.

Size a home battery system from daily usage, solar production, and backup hours needed.

Calculate how many years until solar panels pay for themselves from savings and incentives.

Estimate solar roof tile costs vs traditional solar panels from roof size and energy needs.

Calculate federal and state solar tax credits and incentives from installation cost.

Compare buying, leasing, and PPA solar financing options over 25 years.

Calculate residential wind turbine energy output from rotor size, wind speed, and efficiency.

Calculate customer lifetime value, acquisition cost ratio, and payback period

Analyze LTV, CAC, and payback periods to ensure sustainable growth