Free solar bill check

Check my solar true-up bill

Type in the figures from your annual net-metering statement and upload your system's production export. We redo the arithmetic and show every check. Free. Your figures and file are never saved; we keep only anonymous daily counts, plus a keyed hash of your IP address (or its network prefix) for about a day to limit requests, then it is deleted. No files are kept.

Billing period

Period start

Period end

How your utility credits exports

Your statement or the utility's net-metering page says which one applies.

Credit type

Import rate ($ per kWh)

Surplus kWh at year end

Surplus payout ($ per kWh)

Fixed charges for the period ($) optional

Figures on the statement

Imported from grid (kWh)

Exported to grid (kWh)

Net charge billed ($)

Enter a credit or payout to you as a negative number.

Banked kWh at start optional

Banked kWh at end optional

Banked kWh at end of the previous statement optional

With this and the start figure we also check that nothing was lost between statements.

Production export

CSV file optional, but it finds most errors

One row per day for the billing period. Needs a date column (yyyy-mm-dd) and production_kwh. Add exported_kwh or consumed_kwh to test the export credit. Values in kWh, not Wh. The file is read for this check and not kept.

Check my solar true-up bill

Each check

Notes