Renewable Energy

Renewable, non-emitting sources of energy are a growing part of our energy mix. These sources can provide cost-effective energy to our customers and help hedge against more volatile fuel prices. Our renewable energy portfolio includes wind, hydro power, solar and biomass that come from our own generating facilities and from purchase power agreements.

2009 Renewable Energy Portfolio (in MW)

	Wind	Hydro	Solar	Biomass/ RDF/Landfill	Geothermal	Total
NSP	1,265	277		308		1,850
PSCo	1,258	88	40	3		1,389
SPS	653*					653
2009 Total	3,176	365	40	311		3,892
Project by 2020	7,000	380	700	290	20	8,390

*SPS wind energy totals include 443 MW from long-term contracts and 210 MW of required purchases from qualifying generating facilities.