•Photovoltaics

•Passive solar heating(http://www.gepower.com/prod_serv/products/solar/en/faqs/solar_elec_tech.htm )

•Solar Water Heaters

•Solar Concentration

Concentrating Solar Photovoltaic Power (CSPP) is one of the most efficient and cost effective forms of solar energy.

•Decreases required cell area and maximizes sunlight collection

•Increases cell efficiency (concentrates sunlight up to 500 times!)

(http://thefraserdomain.typepad.com/energy/2005/08/about_concentra.html)

•Parabolic-trough: heats oil which is used to boil water

•Dish/engine: heats fluid which expands and produces mechanical power

•Power tower: heats molten salt to generate electricity through a conventional steam generator

(http://thefraserdomain.typepad.com/energy/2005/08/about_concentra.htm)(http://www.nrel.gov/learning/re_csp.html)

(http://www.gepower.com/prod_serv/products/solar/en/prepkg_sys/index.htm)

•Residential Systems For New & Existing Homes

•Remote Home & Village Systems

•Commercial Systems

•Remote Off-Grid Industrial Systems

Solar power can be tailored to meet a diverse range of spacial and capacity needs.

Net Metering: receiving credit for electricity that you send back into the power grid

(http://www.csmonitor.com/2004/0212/p14s02-sten.html)(http://www.northwestsolarcenter.org/Faq/faq.html)(http://www.portlandgeneral.com/home/products/power_options/netMetering/net_metering.asp?bhcp=1)

•Bridges energysources

•Bi-directional metering equipment at no charge

•Grid stability and lower costs

Roof mountings withstand 125 mph winds

Compatible with almost all roofing materials

Modules withstand one-inch hailstones at 50 mph.

Maintenance is minimal and inexpensive• hose it off a couple times a year. • annual check-up• replace batteries every 5-10 years

•Easy to site

•Less air pollution

•Less water consumption

(www.seia.org/)(http://www.gepower.com/prod_serv/products/solar/en/faqs/solar_elec_tech.htm)

• Energy Policy Act of 2005 - established tax deductions for 50%

energy reductions.

• <1% of US energy needs provided with solar

• Price per watt still falling ($4.50/watt in 1970s); push for continued drop

• Heavy financial investments in:

-Research

-Demonstration

-Development

• Technological advances

• Successful lobbies for tax incentives and government funded research.

(http://www.aia.org/adv_commercialbuilding_taxdeduction)

NW Energy Needs: 25,000 MW

The NW receives more than enough sunlight to

meet our annual power needs

• World’s largest solar system to date in S. CA.

-34,000 dish array

-4,500 acres

-850 MW

(http://pesn.com/2005/08/11/9600147_Edison_Stirling_largest_solar/)

continued….

•Determine prime locations for large scale solar arrays – an area 20% the size of Nevada would power U.S.

•Acquire permits, purchase land, develop infrastructure.

1970’s: $4.50/watt

2010: $3/watt

2020: $1.5/watt

$2/watt achieved = commercially competitive!

(http://www.nrel.gov/ncpv/pdfs/27450.pdf)

• 1 kW array produces ~1,000 kW h/yr

• Affordable• Microtechnology

• International support provided by collective interest in solar power station.

• Developed through NASA and other space programs

• >7,000 MW of centralized renewable power plants built (Department of Energy)

(http://www.stirlingenergy.com/solar_overview.htm)(http://www.space.com/businesstechnology/technology/solar_power_sats_011017-1.html)

NW Power Needs: 28000 MW

1. Resources

-Sun = infinite/renewable

2. Technology

-2025 R&D investments resulting in new technological efficiency

3. Social Priorities

-Public Awareness Campaign to stress severity of the situation

(http://www.cleanenergystates.org/CaseStudies/Shell_2050.pdf)

• Energy Policy Act now mandates efficiencies

• Solar technology in ALL new homes

• Large scale solar structures

• Passive solar architecture design / active solar supplements where possible

• Hope and excitement for solar energy use and development

NW Power Needs: 40,000 MW

(http://www.cleanenergystates.org/CaseStudies/Shell_2050.pdf)