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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: 03/20/2018

System size (W) Estimated monthly output (kWh) Example panel configuration Approximate price (before 30% federal tax credit)
1.08 kW149 kWh/mo4 × 270 W$2500
2.16 kW298 kWh/mo8 × 270 W$4300
2.7 kW438 kWh/mo10 × 270 W$5700
4.05 kW559 kWh/mo15 × 270 W$7200
4.32 kW700 kWh/mo16 × 270 W$8400
5.4 kW831 kWh/mo20 × 270 W$9300
7.56 kW1050 kWh/mo24 × 315 W$10500
8.1 kW1119 kWh/mo30 × 270 W$13900
8.1 kW1266 kWh/mo30 × 270 W$14500
8.64 kW1400 kWh/mo32 × 270 W$14300
10.44 kW1575 kWh/mo36 × 290 W$17100
10.8 kW1678 kWh/mo40 × 270 W$17500
12.15 kW1780 kWh/mo45 × 270 W$21900
14.5 kW1978 kWh/mo50 × 290 W$25900
15.75 kW2188 kWh/mo50 × 315 W$23900
16.2 kW2237 kWh/mo60 × 270 W$23000
17.4 kW2373 kWh/mo60 × 290 W$28300
18.9 kW2625 kWh/mo60 × 315 W$28300
20.88 kW2848 kWh/mo72 × 290 W$36100
21.6 kW2983 kWh/mo80 × 270 W$30500
23.2 kW3164 kWh/mo80 × 290 W$36000
25.2 kW3500 kWh/mo80 × 315 W$36600

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.

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