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Washington Solar Information

Washington isn’t a bad state for solar. There’s always enough sunshine to cover your basic energy needs or at least to reduce your monthly electricity bill. The 26% Federal Solar Tax Credit as well as some local incentives will make your solar installation even more profitable.
  • #27
    Washington ranks #27 in the USA for savings from installing solar panels
  • 5967.82 kWh
    Annual AC energy output of a 4 kW solar system installed in Washington
  • 5.11 kWh
    Solar Radiation (kWh / m2 / day)
  • 3 ¢ /kWh
    The cost of electricity today in PUD No 1 of Chelan County
  • 7 ¢ /kWh
    If you don't go solar. The forecast average utility price over the next 25 years

Washington Solar Facts

  • $1.41
    Average cost of a 4kw solar power system in 2019.
  • 17 years
    Average system payback period.
  • $11 333
    Average lifetime savings.
  • 3 ¢ /kWh
    Levelized cost of solar energy.
  • 5 kW
    Recommended system size.
  • Solar Power System Cost in Washington
  • $1.41 per watt
  • $5 993 total
  • 17 years

Solar power in Washington has expanded to over 27 MW in 2013, largely due to a 30% federal tax credit, and declining installation costs. Washington also pays a feed-in tariff of up to $5,000/year of 15 cents/kWh, which is increased by a factor of 2.4 if the panels are made in the state and by an additional 1.2 if the inverters are made in state.

Tell us how much you are spending on electricity and we’ll calcalute how much you can save if you go solar
According to PUD No 1 of Chelan County, we received the cost of kWH in your area and calculated energy consumption based on an average electricity bill for 3 months.
I am claiming the 26% Federal Tax Credit (ends 2020) i

When you install your solar system, 26% of your project expenses apply toward a credit to offset any taxes you owe that year. This federal tax credit is a major incentive to go solar, but it is being phased out by 2022.

Most people are eligible to claim this credit (you must owe federal taxes to be eligible).

System size

  • Mini
  • Small
  • Medium
  • Large
We recommended
4.26 kW medium system size
Provides up to 80% of electricity consumption
$1.41 per watt
Average system cost
  • image rec 3
    14 x 325 watt
    solar panels
  • +
  • image rec 3
    14 x 300 watt
    microinverter
  • +
  • image rec 3
    1 x 5 000 watt
    inverter
$24.73 / month
Estimated savings on your average quarterly bill
  • $5 993.17
    Estimated system cost
    Excludes 26% Federal Tax Credit.
    This price does not include the installation cost.
  • 17 years
    Average system payback period
  • $11 333.46
    Estimated utility savings

Example of 4 kW system calculation in Minnesota for electricity bill $100

  • 3 ¢ /kWh
    The cost of electricity today in PUD No 1 of Chelan County
  • 7 ¢ /kWh
    If you don't get solar. The forecast average utility price over the next 25 years
  • 3 ¢ /kWh
    levelized cost of solar energy

Relevant product for your system

Entry-level solar panels x 14
$2,602.32
  • View
  • View
Entry-level microinverter x 14
$2,001.15
  • View
Entry-level inverter x 1
$1,523.11
  • View
  • View
In stock
Canadian Solar 315W Solar Panel 120 cell CS3K-320MS Monocrystalline Black - A1 Solar Store 28% Off
Cell number 120 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.52
Rated Power Output 315 W
Voltage (VOC) 40.1V
Cell Type Monocrystalline
In stock
Canadian Solar 325W Solar Panel 60 cell CS1H-325MS Monocrystalline Black - A1 Solar Store 30% Off
Cell number 60 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.57
Rated Power Output 325 W
Voltage (VOC) 43.4V
Cell Type Monocrystalline
In stock
Canadian Solar 320W Solar Panel 60 cell CS1H-320MS-Black Monocrystalline - A1 Solar Store 30% Off
Cell number 60 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.55
Rated Power Output 320 W
Voltage (VOC) 44 V
Cell Type Monocrystalline
In stock
Panasonic HIT 330W Solar Panel 96 cell VBHN330SA17 Monocrystalline Black - A1 Solar Store 28% Off
Cell number 96 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $1.01
Rated Power Output 330 W
Voltage (VOC) 69.7V
Cell Type Monocrystalline