Solar panels in Alamosa, CO
Roofs in Alamosa get about 2,090 hours of usable sunlight a year — more than 99% 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 Alamosa → City averages are a starting point; your own roof's size, pitch and shading change the answer a lot.
What a typical Alamosa solar system costs
A 16-panel system (6.4 kW) is about right for an average Alamosa home using 10,800 kWh a year. It would produce roughly 11,370 kWh annually and offset 100% of that usage.
| System | Size | kWh/yr | Net cost | Saves/yr | Payback |
|---|---|---|---|---|---|
| 8 panels | 3.2 kW | 5,685 | $6,384 | $841 | 7.6 yrs |
| 12 panels | 4.8 kW | 8,527 | $9,576 | $1,262 | 7.6 yrs |
| 16 panels | 6.4 kW | 11,370 | $12,768 | $1,619 | 7.9 yrs |
| 20 panels | 8 kW | 14,212 | $15,960 | $1,725 | 9.3 yrs |
| 26 panels | 10.4 kW | 18,476 | $20,748 | $1,882 | 11 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 Alamosa gets 2,090 sun hours
That figure comes from Google's analysis of real rooftops across Alamosa — 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 Alamosa reaches about 2,141 hours, roughly 2% better than typical.
The numbers behind this page
| Typical usable sunlight | 2,090 hrs/yr |
|---|---|
| Unshaded roof | 2,141 hrs/yr |
| Electricity rate (Colorado avg) | 14.8¢/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 | 33% |
| Paid for exported power | full retail (net metering) |
| Rooftops sampled here | 3 |
| Google imagery from | 2016 |
When Alamosa actually produces
Annual totals hide the thing that catches people out: 35% of Alamosa's yearly sunlight arrives in May–July, and just 14% across November–January.
| Month | Sun hrs | Share of year |
|---|---|---|
| Jan | 100 | |
| Feb | 131 | |
| Mar | 171 | |
| Apr | 211 | |
| May | 238 | |
| Jun | 249 | |
| Jul | 243 | |
| Aug | 221 | |
| Sep | 185 | |
| Oct | 143 | |
| Nov | 107 | |
| Dec | 92 |
Alamosa produces about 2.7× 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 Alamosa's latitude, not separately measured, so treat the monthly figures as the shape of a typical year rather than a forecast.
How Alamosa compares to the other 673 cities
| Measure | Alamosa | Rank of 673 |
|---|---|---|
| Usable sunlight | 2,090 hrs | 5th |
| Sunlight lost to shade | 2% | 597th most |
| Median roof size | 256 m² | 198th largest |
| Electricity rate | 14.8¢ | 429th highest |
| Payback | 7.9 yrs | 83rd fastest |
| Grid carbon | 770 kg/MWh | 185th dirtiest |
What actually stands out about Alamosa:
- Unusually open roofs. Only 2% of available sunlight is lost to obstruction in Alamosa — better than all but 76 of the 673 cities measured. Most roofs here get close to their theoretical maximum.
- Plenty of roof to work with. Typical roofs here fit around 104 panels — roughly 6× what an average home needs. Roof size will not be what limits your system in Alamosa.
- Sunnier than the rest of Colorado. Alamosa roofs get 20% more usable sunlight than the typical Colorado city we've measured — statewide averages will understate what you can expect here.
- Older imagery. Google's aerial capture of Alamosa dates from 2016. Tree growth and new construction since then are not reflected.
Cities with almost the same sunlight
These are the closest matches to Alamosa's 2,090 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 |
|---|---|---|---|
| Clovis, NM | 2,085 | 14.8¢ | 7.9 yrs |
| Surprise, AZ | 2,077 | 15.2¢ | 7.7 yrs |
| Lancaster, CA | 2,105 | 31.2¢ | 7.7 yrs |
| Sierra Vista, AZ | 2,108 | 15.2¢ | 7.7 yrs |
Nearby cities
See all of Colorado → statewide sunlight, rates, incentives and every city we've measured.
Alamosa solar questions
How many solar panels do I need in Alamosa?
About 16 panels for an average home using 10,800 kWh a year. Alamosa roofs get 2,090 usable sun hours, so each 400W panel produces roughly 711 kWh annually. A typical Alamosa roof fits about 104 panels, so roof space is unlikely to be your limit.
Is solar worth it in Alamosa?
At 14.8¢/kWh and 2,090 sun hours, a typical system pays for itself in about 7.9 years and returns roughly $27,719 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 Alamosa?
A 6.4 kW system costs about $18,240 before incentives and $12,768 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 Colorado 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.