NEXTLUM / SOLARSolar Calculator
An initial photovoltaic estimate based on your bills and the solar resource of a general location.
3 essential periods · optional detailSolve the essentials first
- 1Context
- 2Review
- 3Result
Calculate before sharing data. Nothing entered is stored as a lead.
Three periods are enough for an initial annualization. Enter kWh, not the amount.
The result answers a specific decision.
Compare use, production and available area; a survey confirms shade, structure and interconnection.
View related solution↗Questions specific to this tool.
Which bills should I enter?+
Three periods allow an initial annualization; a complete history describes seasonality more clearly.
Is module count final?+
No. Shade, orientation, structure, inverter and commercial wattage can change it.
What does solar lookup do?+
It retrieves resource for a general location; it does not promise production or replace a site study.
Can I use a bimonthly bill?+
Yes. Choose the correct frequency so annualization uses six periods instead of twelve.
Does the bill amount determine system size?+
No. The estimate uses kWh; an optional amount is only a reference, without invented rates.
What if I do not know orientation or shade?+
You can continue with conservative assumptions. Those inputs are optional and validated on site.