Will installing your own generating system fit your needs and budget? Here’s help:
Solar power costs and incentives
Solar systems generally cost $8,000 to $12,000 per kilowatt. Home solar system sizes vary, but most are 1 to 3 kilowatts. Use this handy solar cost calculator from Energy Trust of Oregon to see how installing a solar system will impact your budget. You can plug in different system sizes and quickly see the costs before and after incentives, along with the estimated electrical output and reduction in greenhouse gas emissions.
GreenStreet Lending through Umpqua Bank is a financing option for helping you go solar, especially if you don’t have a home equity line of credit. According to Energy Trust of Oregon, GreenStreet Lending products offer low-interest rate financing, have no origination fees or closing costs and have flexible terms when you work with an Energy Trust solar trade ally contractor.
A variety of incentives are available for solar generation:
- Energy Trust of Oregon: Energy Trust offers a financial incentive of $1.75/watt, up to a maximum of $20,000. See list of Energy Trust-approved contractors (required for eligibility).
- State: Oregon offers a state solar tax credit of $3/watt, up to a maximum of $6,000. A maximum of $1,500 can be claimed per year.
- Federal: A federal solar tax credit is available for 30 percent of the installed cost, after the Energy Trust incentive.
Back to top
Wind power costs and incentives
Most wind systems need a generator, an inverter, a tower and other smaller components. A rule of thumb is that the average wind speed should be above 10 mph for a wind energy site. Generally, wind generators need to be at least 30 feet above buildings, trees and other obstacles to eliminate as much turbulence as possible. Zoning laws may apply. This means small wind systems are rarely suitable for urban areas. Most require at least an acre of land.
Small wind energy systems cost from $3,000 to $5,000 for each kilowatt of generating capacity, or about $40,000 for a 10-kilowatt system, according to the American Wind Energy Association. The association is a good resource for developing a small wind energy system.
A variety of incentives are available for wind generation:
- Energy Trust of Oregon: Up to $35,000 is available for homeowners to install turbines up to 50 kilowatts, based on rotor diameter or rated kilowatts. See the Energy Trust Web site for information on eligibility and how to participate.
- State: Oregon offers a state tax credit for wind systems of $2 per estimated kilowatt hour saved during the first year, up to $6,000.
- Federal: Consumers who install small wind systems can receive a 30 percent federal tax credit.
Back to top
Hydro costs and incentives
Hydroelectric systems are cost effective relative to other types of renewable generation. They typically run 24 hours a day, so a small generator can produce a lot of power.
Hydropower is dependent on water flow rates — gallons per minute — and “fall,” or the distance the water drops, usually measured in feet. Hydroelectric generators for Net Metering usually need a minimum flow of 12 GPM and a minimum fall of 3 feet. If your site has more than 3 feet of fall, the minimum flow can be as low as 3 GPM (at 200 feet of fall).
The cost of a hydroelectric generator starts at $1,000, not including installation. Depending on the system, you also may need an inverter, which costs about $1 per watt, or a protective relay. The total installed costs of hydroelectric generators are difficult to estimate because of the many variables.
See these additional resources on hydropower development:
These incentives are available for hydropower:
- Energy Trust of Oregon: Energy Trust will help fund a feasibility study and provide other incentives; see hydroelectricity on the Energy Trust Web site.
- State: Oregon provides low-interest loans on hydro projects for individuals. See the Energy Loan Program on the state’s Web site.
Back to top