Solar panels in Annapolis, MD
Roofs in Annapolis get about 1,419 hours of usable sunlight a year — less than 77% 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 Annapolis → City averages are a starting point; your own roof's size, pitch and shading change the answer a lot.
What a typical Annapolis solar system costs
A 23-panel system (9.2 kW) is about right for an average Annapolis home using 10,800 kWh a year. It would produce roughly 11,097 kWh annually and offset 100% of that usage.
| System | Size | kWh/yr | Net cost | Saves/yr | Payback |
|---|---|---|---|---|---|
| 8 panels | 3.2 kW | 3,860 | $6,384 | $706 | 9 yrs |
| 12 panels | 4.8 kW | 5,790 | $9,576 | $1,059 | 9 yrs |
| 16 panels | 6.4 kW | 7,719 | $12,768 | $1,413 | 9 yrs |
| 20 panels | 8 kW | 9,649 | $15,960 | $1,766 | 9 yrs |
| 26 panels | 10.4 kW | 12,544 | $20,748 | $2,056 | 10.1 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 Annapolis gets 1,419 sun hours
That figure comes from Google's analysis of real rooftops across Annapolis — 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 Annapolis reaches about 1,627 hours, roughly 15% better than typical.
The numbers behind this page
| Typical usable sunlight | 1,419 hrs/yr |
|---|---|
| Unshaded roof | 1,627 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 | 34% |
| Paid for exported power | full retail (net metering) |
| Rooftops sampled here | 10 |
| Google imagery from | 2022 |
Nearby cities
See all of Maryland → statewide sunlight, rates, incentives and every city we've measured.
Annapolis solar questions
How many solar panels do I need in Annapolis?
About 23 panels for an average home. Annapolis roofs get 1,419 usable sun hours a year, so each 400W panel produces roughly 482 kWh annually.
Is solar worth it in Annapolis?
At 18.3¢/kWh and 1,419 sun hours, a typical system pays for itself in about 9.2 years and returns roughly $31,395 over 25 years. That is a solid return.
How much do solar panels cost in Annapolis?
A 9.2 kW system costs about $26,220 before incentives and $18,354 after the 30% federal tax credit. Prices vary by installer, roof complexity and equipment.
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.