Solar panels in Cumberland, MD
Roofs in Cumberland get about 1,462 hours of usable sunlight a year — less than 66% of the cities we've measured. Here's what that means in cost, savings and payback, using real rooftop data rather than a national average.
Check your specific roof in Cumberland → City averages are a starting point; your own roof's size, pitch and shading change the answer a lot.
What a typical Cumberland solar system costs
A 22-panel system (8.8 kW) is about right for an average Cumberland home using 10,800 kWh a year. It would produce roughly 10,936 kWh annually and offset 100% of that usage.
| System | Size | kWh/yr | Net cost | Saves/yr | Payback |
|---|---|---|---|---|---|
| 8 panels | 3.2 kW | 3,977 | $6,384 | $728 | 8.8 yrs |
| 12 panels | 4.8 kW | 5,965 | $9,576 | $1,092 | 8.8 yrs |
| 16 panels | 6.4 kW | 7,953 | $12,768 | $1,455 | 8.8 yrs |
| 20 panels | 8 kW | 9,942 | $15,960 | $1,819 | 8.8 yrs |
| 26 panels | 10.4 kW | 12,924 | $20,748 | $2,074 | 10 yrs |
Notice that payback barely improves as systems get bigger, and eventually gets worse. That's because you can only save money on electricity you were going to buy anyway. Once a system covers your usage, extra panels mostly generate exports at a much lower rate.
Why Cumberland gets 1,462 sun hours
That figure comes from Google's analysis of real rooftops across Cumberland — it already accounts for shading from trees, chimneys and neighbouring buildings, which is why it's lower than the raw "hours of daylight" figures you'll see elsewhere. An unusually open, unshaded roof in Cumberland reaches about 1,512 hours, roughly 3% better than typical.
The numbers behind this page
| Typical usable sunlight | 1,462 hrs/yr |
|---|---|
| Unshaded roof | 1,512 hrs/yr |
| Electricity rate (Maryland avg) | 18.3¢/kWh |
| Installed cost assumed | $2.85/W |
| Panel size assumed | 400 W |
| Federal tax credit | 30% |
| Typical household usage | 10,800 kWh/yr |
| Power used as generated | 35% |
| Paid for exported power | full retail (net metering) |
| Rooftops sampled here | 11 |
| Google imagery from | 2013 |
When Cumberland actually produces
Annual totals hide the thing that catches people out: 36% of Cumberland's yearly sunlight arrives in May–July, and just 14% across November–January.
| Month | Sun hrs | Share of year |
|---|---|---|
| Jan | 66 | |
| Feb | 89 | |
| Mar | 118 | |
| Apr | 149 | |
| May | 170 | |
| Jun | 179 | |
| Jul | 175 | |
| Aug | 157 | |
| Sep | 129 | |
| Oct | 97 | |
| Nov | 71 | |
| Dec | 60 |
Cumberland produces about 3.0× as much in Jun as in Dec — a normal mid-latitude swing. Expect real winter shortfall and summer surplus rather than steady year-round output.
The annual total is measured from Google's rooftop imagery. Its split across months is calculated from solar geometry at Cumberland's latitude, not separately measured, so treat the monthly figures as the shape of a typical year rather than a forecast.
How Cumberland compares to the other 673 cities
| Measure | Cumberland | Rank of 673 |
|---|---|---|
| Usable sunlight | 1,462 hrs | 441st |
| Sunlight lost to shade | 3% | 521st most |
| Median roof size | 179 m² | 426th largest |
| Electricity rate | 18.3¢ | 167th highest |
| Payback | 8.9 yrs | 237th fastest |
| Grid carbon | 883 kg/MWh | 80th dirtiest |
What actually stands out about Cumberland:
- Every kWh counts more here. The grid serving Cumberland emits 883 kg CO₂ per MWh, among the highest of the 673 cities measured — so the same panels displace more emissions than they would elsewhere.
- Older imagery. Google's aerial capture of Cumberland dates from 2013. Tree growth and new construction since then are not reflected.
Cities with almost the same sunlight
These are the closest matches to Cumberland's 1,462 usable sun hours from other states and provinces. Same sunlight, different electricity prices — which is usually what decides whether solar is worth it.
| City | Sun hrs | Rate | Payback |
|---|---|---|---|
| Dover, DE | 1,462 | 17.2¢ | 9.4 yrs |
| Cincinnati, OH | 1,461 | 15.2¢ | 10.7 yrs |
| Brainerd, MN | 1,461 | 14.8¢ | 11 yrs |
| Mankato, MN | 1,461 | 14.8¢ | 11 yrs |
Nearby cities
See all of Maryland → statewide sunlight, rates, incentives and every city we've measured.
Cumberland solar questions
How many solar panels do I need in Cumberland?
About 22 panels for an average home using 10,800 kWh a year. Cumberland roofs get 1,462 usable sun hours, so each 400W panel produces roughly 497 kWh annually. A typical Cumberland roof fits about 48 panels, so roof space is unlikely to be your limit.
Is solar worth it in Cumberland?
At 18.3¢/kWh and 1,462 sun hours, a typical system pays for itself in about 8.9 years and returns roughly $32,009 over a 25-year panel life. That is a solid return, and it improves further if electricity prices rise. Exported power earns full retail credit here.
How much do solar panels cost in Cumberland?
A 8.8 kW system costs about $25,080 before incentives and $17,556 after the 30% federal tax credit. That works out near $2.85 per watt installed. Roof pitch, shading, electrical panel upgrades and equipment choice move the price most, which is why quotes for the same house can differ by thousands.
Worth reading before you buy
Estimates only, generated 2026-08-22 from Google Solar API rooftop samples and average Maryland electricity rates. Not a quote and not financial advice. Your roof, usage, utility plan and local incentives will change these numbers — get real quotes before buying.