Every number in the 25-year cashflow is documented here and can be overridden. Electricity rate source: override ($0.347/kWh).
| Parameter | Value |
|---|---|
| System lifetime | 25 years |
| Panel degradation | 0.5%/yr |
| Discount rate | 6.0% |
| O&M cost | $20 /kW/yr |
| Federal tax credit (ITC) | 30% |
| Electricity rate used | $0.347/kWh |
| Rate escalation | 2.5%/yr |
| Export credit vs retail | 0.16 |
| Self-consumption | 40% |
| Grid CO2 intensity | 0.0004 t/kWh |
| Install cost used | $3.50/W |
| Resolved Address | San Francisco, CA 94103 |
| Coordinates | 37.7725, -122.4147 |
| Geocode Source | uszips (medium) |
| PVWatts Station Distance | 50,000 m |
| Utility | City & County of San Francisco (Utility Company) |
| Rate Schedule | EIA CA 2026-06 (URDB was stale: R-1 Residential Service) |
| Rate Source | eia_live |
| TOU Rate | No |
| Fixed Monthly Charge | $3.60 |
| Export Policy | NEM 3.0 (CA) |
| Avg Export Rate | $0.0549/kWh |
| System Size | 4.5 kW |
| Sizing Method | user_specified |
| System lifetime | 25 years |
| Panel degradation | 0.5%/yr |
| Discount rate | 6.0% |
| O&M cost | $20 /kW/yr |
| Federal tax credit (ITC) | 30% |
| Electricity rate used | $0.347/kWh |
| Rate escalation | 2.5%/yr |
| Export credit vs retail | 0.16 |
| Self-consumption | 40% |
| Grid CO2 intensity | 0.0004 t/kWh |
| Install cost used | $3.50/W |