Solar panel yield in Helena

Each kWp of solar panels in Helena, at the best angle of 43°, produces about 1,712 kWh of electricity a year – worth $267 at today's household electricity price.

Yield per kWp
1,712 kWh
per year
Value per kWp
$267
if used at home, at today's tariff
Versus the United States average
+12%
1,530 kWh
Solar rank in the United States
753 of 4,349

Monthly yield of 1 kWp

JanFebMarAprMayJunJulAugSepOctNovDec
Long-term average monthly production (PVGIS), panels facing south at the optimal angle, 14 % system losses.
Show the data as a table
MonthkWh
Jan112
Feb130
Mar169
Apr164
May159
Jun154
Jul172
Aug168
Sep149
Oct131
Nov108
Dec96

A typical 5 kWp home system

A 5 kWp system in Helena would produce about 8,561 kWh a year – 342% of the 2,500 kWh our default home uses.

Payback

How fast a system pays for itself depends on its price, how much of the power you use yourself and the feed-in tariff. Try your own numbers: Solar payback calculator →

Cost of running a home in Helena →

Source: PVGIS © European Union, 2001–2026.

Updated: