Here are some reputable websites that offer solar calculators to help you estimate the size and cost of a solar panel system tailored to your energy needs:

  1. PVWatts Calculator by NREL
    • Description: Developed by the National Renewable Energy Laboratory (NREL), this tool estimates the energy production and cost of grid-connected photovoltaic (PV) energy systems worldwide.
    • Access it here: PVWatts Calculator
  2. EnergySage Solar Calculator
    • Description: Provides personalized solar estimates based on your location, roof characteristics, and current electricity usage.
    • Access it here: EnergySage Solar Calculator
  3. Solar-Estimate.org Calculator
    • Description: Offers detailed solar estimates, including system size, cost, and savings projections, based on your specific address and utility rates.
    • Access it here: Solar-Estimate.org Calculator
  4. Solar Project Builder
    • Description: financial benefit of various financing options for solar PV installations.
    • Access it here: Solar Project Builder
  5. Renogy Solar Calculator
    • Description: Assists in designing off-grid solar systems by calculating the number of panels and battery storage needed based on your energy usage.
    • Access it here: Renogy Solar Calculator
  6. Solar Panel Calculator by Omni Calculator
    • Description: Estimates the number of solar panels required, system size, and potential savings based on your electricity consumption and location.
    • Access it here: Omni Calculator Solar Panel Calculator
  7. Solar Power Sizing Calculator by RenewableWise
    • Description: Designed for off-grid systems, this calculator helps estimate the size of your PV array, batteries, and charge controller based on your energy needs.
    • Access it here: RenewableWise Off-Grid Solar Calculator

These tools can provide valuable insights into the feasibility and benefits of installing a solar energy system tailored to your specific requirements.