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Grid-Tied Solar Systems: Ballpark Estimated Costs



There are a lot of factors to consider when you're investing in solar power for your home. With Wholesale Solar's pre-wired grid-tie systems you'll be able to see what components are needed for your system and a ballpark figure of what you might expect to pay. These figures don't include the 30 percent Federal Tax Credit you'll receive for investing in renewable energy. To see individual system components, click on Wholesale Solar grid-tie systems below.

View grid tie systems.



Last updated: 05/22/2019

System size (W) Estimated monthly output (kWh) Example panel configuration Approximate price (before 30% federal tax credit)
1.1 kW151 kWh/mo4 × 275 W
$2000
1.65 kW301 kWh/mo6 × 275 W
$3400
2.2 kW415 kWh/mo8 × 275 W
$4200
3.3 kW565 kWh/mo12 × 275 W
$5200
4.13 kW697 kWh/mo15 × 275 W
$5800
4.4 kW830 kWh/mo16 × 275 W
$6900
6.3 kW1037 kWh/mo20 × 315 W
$8300
8.25 kW1130 kWh/mo30 × 275 W
$8600
6.6 kW1245 kWh/mo24 × 275 W
$10200
9.12 kW1394 kWh/mo32 × 285 W
$11200
8.25 kW1507 kWh/mo30 × 275 W
$13900
8.8 kW1659 kWh/mo32 × 275 W
$13800
9.9 kW1786 kWh/mo36 × 275 W
$13600
12.83 kW1945 kWh/mo45 × 285 W
$18100
12.6 kW2074 kWh/mo40 × 315 W
$16800
13.75 kW2232 kWh/mo50 × 275 W
$16800
17.1 kW2334 kWh/mo60 × 285 W
$17700
15.75 kW2593 kWh/mo50 × 315 W
$23000
19.5 kW2678 kWh/mo60 × 325 W
$23600
16.5 kW3014 kWh/mo60 × 275 W
$22600
25.2 kW3485 kWh/mo80 × 315 W
$29600
26 kW3571 kWh/mo80 × 325 W
$31000
30 kW4148 kWh/mo80 × 375 W
$38700

These figures are based on complete solar power systems that Wholesale Solar sells. Prices are approximate. Prices do not include racking, batteries, freight, tax, or installation.

Why are smaller systems sometimes more expensive than larger ones? Because higher-efficiency panels cost more. For example, to get a 10 kW system, you can either use 35 285W panels or 39 260W panels. Even though you need more 260W panels (they are less efficient), economies of scale actually make them more affordable. So when would you want to use higher-efficieny panels? Only when you're limited on roof/ground space and need to squeeze the most power out of every available square foot. In other words, more efficient panels cost more but can generate more power per square area. If you're not limited by space, we suggest you go with the best price per watt instead.

Comparing the True Cost of Utility Company Electricity with that of Solar Energy

Conventional fuel sources—oil, gas, coal, nuclear—have created a huge number of environmental problems. We pay with tax dollars, with higher prices for consumer goods, and with lower quality of life for acid rain, smog, water pollution, overflowing waste disposal dumps, the steady loss of natural resources, global warming and destruction of natural habitats.

Solar technology is allowing us to avoid many of these potential disasters. The silicon from one ton of sand has the potential to produce as much electricity as 500,000 tons of coal. One medium sized solar system will save the earth from 6,000 lbs. of carbon dioxide pollution.