Solar panels in Ventura, CA
Roofs in Ventura get about 1,930 hours of usable sunlight a year — more than 89% 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 Ventura → City averages are a starting point; your own roof's size, pitch and shading change the answer a lot.
What a typical Ventura solar system costs
A 17-panel system (6.8 kW) is about right for an average Ventura home using 10,800 kWh a year. It would produce roughly 11,155 kWh annually and offset 100% of that usage.
| System | Size | kWh/yr | Net cost | Saves/yr | Payback |
|---|---|---|---|---|---|
| 8 panels | 3.2 kW | 5,250 | $6,384 | $1,271 | 5 yrs |
| 12 panels | 4.8 kW | 7,874 | $9,576 | $1,435 | 6.7 yrs |
| 16 panels | 6.4 kW | 10,499 | $12,768 | $1,599 | 8 yrs |
| 20 panels | 8 kW | 13,124 | $15,960 | $1,762 | 9.1 yrs |
| 26 panels | 10.4 kW | 17,061 | $20,748 | $2,008 | 10.3 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 Ventura gets 1,930 sun hours
That figure comes from Google's analysis of real rooftops across Ventura — 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 Ventura reaches about 2,008 hours, roughly 4% better than typical.
The numbers behind this page
| Typical usable sunlight | 1,930 hrs/yr |
|---|---|
| Unshaded roof | 2,008 hrs/yr |
| Electricity rate (California avg) | 31.2¢/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 | 20% of retail |
| Rooftops sampled here | 3 |
| Google imagery from | 2019 |
When Ventura actually produces
Annual totals hide the thing that catches people out: 34% of Ventura's yearly sunlight arrives in May–July, and just 15% across November–January.
| Month | Sun hrs | Share of year |
|---|---|---|
| Jan | 100 | |
| Feb | 126 | |
| Mar | 159 | |
| Apr | 192 | |
| May | 213 | |
| Jun | 221 | |
| Jul | 216 | |
| Aug | 199 | |
| Sep | 171 | |
| Oct | 136 | |
| Nov | 106 | |
| Dec | 92 |
Output is unusually steady — only about 2.4× between Jun and Dec. Ventura 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 Ventura's latitude, not separately measured, so treat the monthly figures as the shape of a typical year rather than a forecast.
How Ventura compares to the other 673 cities
| Measure | Ventura | Rank of 673 |
|---|---|---|
| Usable sunlight | 1,930 hrs | 71st |
| Sunlight lost to shade | 4% | 462nd most |
| Median roof size | 375 m² | 39th largest |
| Electricity rate | 31.2¢ | 66th highest |
| Payback | 8.3 yrs | 145th fastest |
| Grid carbon | 429 kg/MWh | 602nd dirtiest |
What actually stands out about Ventura:
- Plenty of roof to work with. Typical roofs here fit around 121 panels — roughly 7× what an average home needs. Roof size will not be what limits your system in Ventura.
- Large roofs. At a median of 375 m², Ventura has the 39th-largest typical roof footprint we've measured.
- The case here is financial, not environmental. Ventura's grid is already clean at 429 kg CO₂ per MWh, so the carbon saving from solar is modest. Judge this one on payback.
- Expensive electricity works in your favour. At 31.2¢/kWh, California is among the priciest places to buy power — which is exactly what makes generating your own pay back faster.
- Older imagery. Google's aerial capture of Ventura 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 Ventura's 1,930 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 |
|---|---|---|---|
| Phoenix, AZ | 1,932 | 15.2¢ | 8.2 yrs |
| Sparks, NV | 1,927 | 15.3¢ | 8.1 yrs |
| Reno, NV | 1,926 | 15.3¢ | 8.1 yrs |
| Tempe, AZ | 1,934 | 15.2¢ | 8.2 yrs |
Nearby cities
See all of California → statewide sunlight, rates, incentives and every city we've measured.
Ventura solar questions
How many solar panels do I need in Ventura?
About 17 panels for an average home using 10,800 kWh a year. Ventura roofs get 1,930 usable sun hours, so each 400W panel produces roughly 656 kWh annually. A typical Ventura roof fits about 121 panels, so roof space is unlikely to be your limit.
Is solar worth it in Ventura?
At 31.2¢/kWh and 1,930 sun hours, a typical system pays for itself in about 8.3 years and returns roughly $27,424 over a 25-year panel life. That is a solid return, and it improves further if electricity prices rise. Exports earn only 20% of retail, so using power as you generate it matters.
How much do solar panels cost in Ventura?
A 6.8 kW system costs about $19,380 before incentives and $13,566 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 California 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.