Glossary
Solar and energy concept nodes
Definitions for the core concepts that drive rooftop solar economics, utility data, and calculator assumptions.
Core concepts
- Electricity pricing
Electricity pricing is the rate structure and per-kilowatt-hour price a household pays for grid electricity.
- Net metering
Net metering is a billing method that credits a customer for renewable electricity exported to the grid.
- Solar investment tax credit
The solar investment tax credit is the federal tax-credit mechanism that can reduce eligible solar project costs.
- Payback period
Payback period is the time it takes for cumulative cash flow or savings to recover an initial investment.
- Photovoltaics
Photovoltaics is the conversion of solar radiation into electricity using semiconductor solar cells.
- Community solar
Community solar is an off-site solar project whose output or bill credits are shared by multiple subscribers.