Solar & Energy Calculators

Solar Panels Needed Calculator

How many solar panels you need based on energy usage

Roof Solar Potential

Evaluate your roof's solar energy potential

Solar Installation Cost

Estimate the cost of installing solar panels

Battery Storage Calculator

Find the right battery storage capacity for your home

Solar Payback Period

How long until your solar investment pays off

Solar ROI Calculator

Calculate your solar investment return over 25 years

Net Metering Savings

Calculate savings from net metering programs

Federal Tax Credit

Calculate your ITC federal solar tax credit

State Rebate Calculator

Find and calculate state-level solar incentives

Solar Loan Calculator

Compare solar loan options and payments

Solar Lease vs Buy

Compare leasing vs buying solar panels

Electricity Savings Calculator

Projected monthly and annual electricity savings

Home Energy Audit

Analyze your home's energy usage by source

Appliance Energy Calculator

Calculate energy consumption of household appliances

LED Savings Calculator

Savings from switching to LED bulbs

Thermostat Savings

Energy savings from smart thermostat settings

Window Efficiency Calculator

Compare single, double, and triple-pane windows

Insulation ROI Calculator

Return on investment for home insulation

Standby Power Calculator

Calculate energy wasted by devices on standby

Energy Star Comparison

Compare Energy Star rated appliance savings

EV Charger Cost Calculator

Cost of installing and using an EV home charger

EV vs Gas Car Comparison

Compare total cost of EV vs gasoline vehicles

Carbon Reduction Calculator

Calculate your CO2 reduction from solar energy

Solar Water Heater Calculator

Savings from solar water heating

Home Generation Estimator

Estimate your home's daily and monthly solar generation

Solar Installation Guide

Complete guide to installing solar panels

Solar Energy FAQ

Common questions about solar energy answered