Solar Energy in Saint-Philippe
Saint-Philippe is located at 21.4°S, 55.8°E in Réunion. Here's what solar energy looks like for homeowners in this area.
Annual Irradiance
1,686
kWh/m²
Peak Sun Hours
4
hrs/day
3 kWp Output
4,350
kWh/year
Solar Score
82
/ 100
What does this mean for your roof?
Saint-Philippe receives approximately 1,686 kWh/m² of solar irradiance per year, which translates to 4 peak sun hours per day. This is excellent for residential solar energy production.
With a solar score of 82/100, Saint-Philippe ranks #20 of 25 cities in Réunion for solar potential in our atlas.
A typical 3 kWp residential solar system (7 panels) in Saint-Philippe would produce approximately 4,350 kWh per year, sized for the average household in Réunion.
The best months for solar production in Saint-Philippe are November – February, while the lowest production occurs during May – July. Being in the southern hemisphere, north-facing roofs capture the most annual sunlight.
Estimated savings in Saint-Philippe
System Cost
€3,590
3 kWp, before incentives
Annual Savings
~€378
At €0.15/kWh
Payback Period
~10 years
Before local incentives
25-Year Net Result
~€8,510
Savings minus system cost
These are approximate figures based on a standardized household consumption of 5,000 kWh/year and an estimated electricity rate of €0.15/kWh in Réunion. Local incentives may reduce the upfront cost — check current subsidy, tax-credit, or VAT programs in Réunion, as these can meaningfully shorten the payback period.
Figures are estimates based on typical system assumptions and the latest available electricity-price and billing data for Réunion. Actual costs, tariffs, net-metering rules, and incentives vary by utility and change over time — confirm with a local installer or energy authority before making decisions.
How solar billing works in Réunion
Exports and imports are priced separately, usually at different rates.
In Réunion, rooftop solar appears to fall under a net-billing-style approach, where the energy you export and the energy you import are typically valued separately rather than simply cancelling out. Exports are often credited at a rate that may be lower than the retail price you pay for imported power, which generally rewards using your own generation as it is produced. The precise export and import prices vary by region and utility and change over time, so they should be confirmed locally.
Get your exact numbers
Our calculator uses NASA satellite data for your precise location — not city-level estimates. Free, instant, no signup.
Solar tips for Saint-Philippe homeowners
Face panels north
In the southern hemisphere, north-facing panels capture the most annual sunlight. East-west split systems also work well.
Optimal tilt angle
For Saint-Philippe, the energy-optimal panel tilt is about 18° from horizontal.
Size your system right
For the average household in Réunion, a 3 kWp system (7 panels) covers most electricity needs. Use our calculator for a personalized estimate.
Check local incentives
Local incentives may reduce the upfront cost of residential solar — check current subsidy, tax-credit, and VAT programs with your energy authority in Réunion.
Gear to prepare for solar
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Solar in other Réunion cities
Frequently asked questions about solar in Saint-Philippe
How much do solar panels cost in Saint-Philippe?
A typical 3 kWp residential solar system in Saint-Philippe, Réunion costs approximately €3,590 before incentives — this is an estimate based on typical regional pricing. Local incentives such as subsidies, tax credits, or VAT exemptions may reduce the upfront cost; check current programs in Réunion.
How are solar exports valued under net billing in Réunion?
Under a net-billing-style scheme, exports from your system in Réunion are typically bought at one rate while the electricity you import is charged at another, and the two are usually not the same. Because the export credit may be lower than the retail import price, consuming your own solar power directly tends to be the most valuable option. Actual rates vary by region and utility and can change, so confirm the current figures with a local installer or energy authority.
How much electricity do solar panels produce in Saint-Philippe?
A 3 kWp solar system in Saint-Philippe produces approximately 4,350 kWh per year, based on 4 peak sun hours per day and 1,686 kWh/m² annual irradiance.
What is the solar panel payback period in Saint-Philippe?
Based on Réunion's electricity rate of €0.15/kWh, a 3 kWp system in Saint-Philippe pays for itself in approximately 10 years before incentives. After that, the electricity it generates is essentially free for the remaining panel lifespan of 25+ years.
Which direction should solar panels face in Saint-Philippe?
In Saint-Philippe, panels should ideally face north since it's in the southern hemisphere. The optimal tilt angle is about 18° from horizontal.
How many solar panels do I need for my home in Saint-Philippe?
A typical household in Réunion uses the equivalent of a 3 kWp system (7 panels). With 4 peak sun hours per day in Saint-Philippe, this covers most electricity needs. Use our calculator for a personalized estimate.