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WEM SOLAR CALCULATOR

Turn three electricity bills into a clear solar starting point.

Enter the amount from each of your last three bills, choose On-grid or Hybrid and your preferred panel wattage, and get an instant preliminary system recommendation, material schedule, battery plan, and installation labor allowance.

Fixed 30% design allowance On-grid or Hybrid 620W, 680W, or 720W panels
YOUR ELECTRICITY USE

Enter three bill amounts

Use the total current charges before late-payment fees, reconnection fees, or old unpaid balances.

Choose the solar system type
Choose your panel wattage
Calculation assumptions

The model always adds a 30% solar design allowance after estimating the base requirement. It uses 4.5 peak-sun-hours per day and an 80% system performance ratio. Change the electricity rate to the current blended rate shown on your bill.

YOUR RECOMMENDATION WILL APPEAR HERE

Add all three bill amounts.

The result updates automatically as you enter the customer's bills and change the selected panel wattage.

READY FOR A VERIFIED DESIGN?

Let WEM check the roof, electrical service, and actual daytime load.

Send the three complete bills and site location. The final proposal is issued only after technical review, product confirmation, and a proper quotation.

Request a site assessment