Solar panels in Carlsbad, NM
Roofs in Carlsbad get about 2,051 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 Carlsbad → City averages are a starting point; your own roof's size, pitch and shading change the answer a lot.
What a typical Carlsbad solar system costs
A 16-panel system (6.4 kW) is about right for an average Carlsbad home using 10,800 kWh a year. It would produce roughly 11,157 kWh annually and offset 100% of that usage.
| System | Size | kWh/yr | Net cost | Saves/yr | Payback |
|---|---|---|---|---|---|
| 8 panels | 3.2 kW | 5,579 | $6,384 | $826 | 7.7 yrs |
| 12 panels | 4.8 kW | 8,368 | $9,576 | $1,238 | 7.7 yrs |
| 16 panels | 6.4 kW | 11,157 | $12,768 | $1,612 | 7.9 yrs |
| 20 panels | 8 kW | 13,947 | $15,960 | $1,715 | 9.3 yrs |
| 26 panels | 10.4 kW | 18,131 | $20,748 | $1,870 | 11.1 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 Carlsbad gets 2,051 sun hours
That figure comes from Google's analysis of real rooftops across Carlsbad — 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 Carlsbad reaches about 2,087 hours, roughly 2% better than typical.
The numbers behind this page
| Typical usable sunlight | 2,051 hrs/yr |
|---|---|
| Unshaded roof | 2,087 hrs/yr |
| Electricity rate (New Mexico 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 | 34% |
| Paid for exported power | full retail (net metering) |
| Rooftops sampled here | 4 |
| Google imagery from | 2019 |
When Carlsbad actually produces
Annual totals hide the thing that catches people out: 33% of Carlsbad's yearly sunlight arrives in May–July, and just 16% across November–January.
| Month | Sun hrs | Share of year |
|---|---|---|
| Jan | 110 | |
| Feb | 137 | |
| Mar | 170 | |
| Apr | 202 | |
| May | 222 | |
| Jun | 229 | |
| Jul | 225 | |
| Aug | 209 | |
| Sep | 181 | |
| Oct | 146 | |
| Nov | 116 | |
| Dec | 102 |
Output is unusually steady — only about 2.2× between Jun and Dec. Carlsbad is close enough to the equator that seasonal variation is mild, which makes sizing a system considerably more predictable.
The annual total is measured from Google's rooftop imagery. Its split across months is calculated from solar geometry at Carlsbad's latitude, not separately measured, so treat the monthly figures as the shape of a typical year rather than a forecast.
How Carlsbad compares to the other 673 cities
| Measure | Carlsbad | Rank of 673 |
|---|---|---|
| Usable sunlight | 2,051 hrs | 10th |
| Sunlight lost to shade | 2% | 629th most |
| Median roof size | 173 m² | 447th largest |
| Electricity rate | 14.8¢ | 430th highest |
| Payback | 7.9 yrs | 84th fastest |
| Grid carbon | 758 kg/MWh | 198th dirtiest |
What actually stands out about Carlsbad:
- Unusually open roofs. Only 2% of available sunlight is lost to obstruction in Carlsbad — better than all but 44 of the 673 cities measured. Most roofs here get close to their theoretical maximum.
- Older imagery. Google's aerial capture of Carlsbad dates from 2019. Tree growth and new construction since then are not reflected.
Cities with almost the same sunlight
These are the closest matches to Carlsbad's 2,051 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 |
|---|---|---|---|
| Henderson, NV | 2,045 | 15.3¢ | 7.7 yrs |
| Santa Clarita, CA | 2,045 | 31.2¢ | 7.8 yrs |
| Tucson, AZ | 2,043 | 15.2¢ | 7.7 yrs |
| El Paso, TX | 2,043 | 15.1¢ | 7.8 yrs |
Nearby cities
See all of New Mexico → statewide sunlight, rates, incentives and every city we've measured.
Carlsbad solar questions
How many solar panels do I need in Carlsbad?
About 16 panels for an average home using 10,800 kWh a year. Carlsbad roofs get 2,051 usable sun hours, so each 400W panel produces roughly 697 kWh annually. A typical Carlsbad roof fits about 59 panels, so roof space is unlikely to be your limit.
Is solar worth it in Carlsbad?
At 14.8¢/kWh and 2,051 sun hours, a typical system pays for itself in about 7.9 years and returns roughly $27,523 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 Carlsbad?
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 New Mexico 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.