Abstract
How long does a PV system have to operate to recover the energy-and the associated generation of pollution and CO2- that went into making the system? Energy paybacks for rooftop systems range from 1 to 4 years, depending on the system. Based on models and real data, the idea that PV cannot pay back its energy investment is simply a myth.
| Original language | American English |
|---|---|
| Number of pages | 2 |
| State | Published - 2004 |
NREL Publication Number
- NREL/FS-520-37322
Other Report Number
- DOE/GO-102004-2040
Keywords
- CO2
- energy payback
- FAQs
- frequently asked questions
- ground systems
- pay back energy
- payback
- photovoltaics (PV)
- PV
- solar energy