EfstonScience customizes every installation to the unique requirements of your site and structure to maximize your return on investment. Here are some scenarios illustrating possible 10 kW MicroFIT system configurations with different costs, energy output and profits: Ground Mount with 1-axis tracking • Fixed Ground Mount • Flat Roof • Sloped Roof
South-facing sloped roofs are ideal candidates for a solar energy system.
Quick Mount PV aluminum roof shingles are an all-in-one watertight flashing and mount that you can quickly and easily install on shingled, sloped roofs with no cutaway required.
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Self-contained PowerTrac system installs quickly and maximizes sun exposure.
This ground-mounted system is an ideal candidate for tracking. The single-axis azimuth tracker can boost output by up to 25% by following the sun from east to west over the course of the day.
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Non-penetrating ballast mounts are angled south, pitched 25° and spaced to avoid shading.
Ballasted mounts use weight to hold panels on the roof, so they are quick to install, easy to move and don’t penetrate roof structures.
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You can use this simple mounting footer design for the most difficult sites and soil conditions with minimal site preparation.
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| 10kW Solar Power Systems |
Ground Mount with 1-axis tracking |
Fixed Ground Mount |
Sloped Roof |
Flat Roof |
| System Configuration |
40 x 295 W panels |
48 x 235 W panels |
46 x 250 W panels |
46 x 250 W panels |
| Rated Output |
11.8 kW (DC) |
11.28 kW (DC) |
11.5 kW (DC) |
11.5 kW (DC) |
Est. Avg.
Annual Output1 |
14,952 kWh/year |
12,805 kWh/year |
13,073 kWh/year |
12,972 kWh/year |
Estimated Average
Annual Income |
$9,599 per year
(64.2¢/kWh)2 |
$8,220 per year
(64.2¢/kWh)2 |
$10,485 per year
(80.2¢/kWh)2 |
$10,403 per year
(80.2¢/kWh)2 |
Total
MicroFIT Income
20 year contract |
$191,979 |
$163,216 |
$208,499 |
$206,879 |
| Equipment |
$68,000 |
$55,000 |
$45,000 |
$50,000 |
| Engineering |
$2,000 |
$2,000 |
$2,500 |
$5,000 |
| Installation |
$10,000 |
$13,000 |
$10,500 |
$15,000 |
| Total installed cost3 |
$80,000 |
$70,000 |
$58,000 |
$70,000 |
| Net profit |
$111,979 |
$93,216 |
$150,499 |
$136,879 |
| Payback time |
8.3 years |
8.5 years |
5.5 years |
6.7 years |
| Lifetime CO2 reduction4 |
>58000 kg |
>58000 kg |
>58000 kg |
>58000 kg |
1 Estimated average output for Toronto, ON, as calculated by Natural Resources Canada RETScreen. Output estimates are averaged over the 20 years of the MicroFIT contract.
2 80.2¢ per kWh for roof-mounted or 64.2¢ per kWh for ground-mounted is paid by the Ontario Power Authority via the MicroFIT Feed-In-Tariff program.
3 Estimated total installed cost, exclusive of taxes at time of publication. In this highly competitive market prices are constantly changing. Contact us for the most up-to-date estimate.
4 Based on RETScreen estimated average greenhouse gas emission offset for power generated in Canada (.196 kg CO2 per kWh).
