Pacific Power: Sample Costs for a Typical 4.72 kW Rooftop Solar System in the Corvallis Area
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The main difference is the initial upfront cost for you. In the end the cost is currently almost the same.

Homeowner expenses with Seeds for the Sol assistance incentives running total
Total System Cost – before incentives ($14,500)
Energy Trust of Oregon Rebate, on average-more… $3,800 ($10,700)
SfTS Sun Buddy 0% Loan $3,567 ($7,133)
SfTS Pass Through Partner Agreement unavailable 
Upfront Cost for the Sun Harvester – YOU    ($7,133)
Seeds for the Sol Processing Fee ($150)
Homeowner out-of-pocket cost-after incentives ($7,283)
Homeowner with no assistance incentives running total
Total System Cost – before incentives ($14,500)
Energy Trust of Oregon Rebate, on average more… $3,800 ($10,700)
Oregon State Tax Credit unavailable
Upfront Cost for the Sun Harvester – YOU    ($10,700)
Federal Tax Credit $3,567 ($7,133)
Homeowner out-of-pocket cost-after Federal Tax Credit ($7,133)

System Cost: Estimated by the participating solar installers Abundant Solar and BE Solar for a 4.72 kW installation.
Energy Trust of Oregon Rebate: Solar incentive calculated as 4.72 kW x $0.25/W = $1,18; as of 10/15/17 (see http://energytrust.org/renewable- energy/incentives/solar/Residential/SolarElectric).
Federal tax credit: 30% of homeowner cost after the ETO rebate, returned with federal tax return.
State tax credit: $6,000 maximum or 50% of system cost, returned in maximum increments of $1,500 over a minimum of 4 years.
Sun Harvester: Homeowner that is assisted by Seeds for the Sol to have solar power system installed on their roof.
Sun Buddy 0% Interest Loan: Sun Harvester pays SFTS back when their federal tax return arrives.
Pass Through Partner Agreement: Sun Harvester agrees to sell their state tax credit at 90% of its value. On a 4.7 kW system the Pass Through Partner pays the Sun Harvester $5,400 at closing. At this point, the Oregon Dept. of Energy recognizes the Pass Through Partner as the owner of the $6,000 state tax credit.
Processing Fee: This fee covers administrative costs for Seeds for the Sol.

Typical Energy Savings: $350 – $450 / year