Adjust your scenario
Last 12 months, from your power bill
System power (e.g. 10 x 400W panels)
Utility's price per kWh
What an installer charges per Watt
Payment method
Grid export policy
kWh credits roll forward monthly; credit left at year end is not paid out
Certificates earned / MWh produced
Panel efficiency loss per year
Expected yearly utility rate increase
Yearly upkeep cost (leases include this)
No production estimate yet, so no savings to show.
- Upfront
- $15,000
- System size
- 5kW
Last updated: January 13, 2026
