In EPA's continuing effort to expand access to information about the environment, the agency has established a new web page on the environmental benefits of solar energy, including the ways in which air pollution can be curtailed by the use of solar power as an energy source.

EPA's Pollution Prevention Calculator (link temporarily down)

By installing a solar water heater, the state’s desert homeowners could save between 50% and 90% on their hot water bill.  This section allows the creation of a "personalized" chart that estimates monthly savings and cash flow based on financing a solar system as part of a home loan.

1. list of solar water heaters and their efficiencies
2. consumer's utility rate information - APS, SRP, TEP
3. solar life cycle costing analysis