1. Details on California's Renewable Portfolio Standard can be found at http://www.cpuc.ca.gov/PUC/energy/Renewables/overview.htm.
2. California Energy Commission, California Energy Commission, Renewables Portfolio Standard Eligibility, 3rd. Ed., Sacramento, CA, Jan. 2008.
3. EIA, 2002–2012: Annual Energy Outlook 2007/8: With Projections to 2030, DOE/EIA-0383 (2007/8).
4. Transforming the Electric Infrastructure;Gellings;Phys. Today,2004
5. U. Helman et al., Integration of Renewable Resources: Operational Requirements and Generation Fleet Capability at 20% RPS, California Independent System Operator, Aug. 31, 2010.