Solar Energy in Port of Spain
Port of Spain is located at 10.7°N, 61.5°W in Trinidad & Tobago. Here's what solar energy looks like for homeowners in this area.
Annual Irradiance
1,779
kWh/m²
Peak Sun Hours
4.2
hrs/day
4 kWp Output
6,120
kWh/year
Solar Score
59
/ 100
What does this mean for your roof?
Port of Spain receives approximately 1,779 kWh/m² of solar irradiance per year, which translates to 4.2 peak sun hours per day. This is good for residential solar energy production.
With a solar score of 59/100, Port of Spain ranks #19 of 22 cities in Trinidad & Tobago for solar potential in our atlas.
A typical 4 kWp residential solar system (9 panels) in Port of Spain would produce approximately 6,120 kWh per year, sized for the average household in Trinidad & Tobago.
The best months for solar production in Port of Spain are Year-round (minimal seasonal variation), while the lowest production occurs during Rainy season (varies by region). Being in the northern hemisphere, south-facing roofs capture the most annual sunlight.
Estimated savings in Port of Spain
System Cost
TT$43,500
4 kWp, before incentives
Annual Savings
~TT$2,370
At TT$0.388/kWh
Payback Period
~18 years
Before local incentives
25-Year Net Result
~TT$32,400
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 TT$0.388/kWh in Trinidad & Tobago. Local incentives may reduce the upfront cost — check current subsidy, tax-credit, or VAT programs in Trinidad & Tobago, 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 Trinidad & Tobago. 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 Trinidad & Tobago
Exported energy spins your meter back, offsetting what you draw later.
In Trinidad & Tobago, rooftop solar is often compensated through an arrangement that resembles net metering, where the electricity you send to the grid is typically credited against the electricity you draw from it. In many areas only the net difference at the end of a billing period is charged, so surplus generation in sunny months may help cover quieter ones. The exact crediting rules, billing windows, and any caps vary by region and utility and 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 Port of Spain homeowners
Face panels south
In the northern hemisphere, south-facing panels capture the most annual sunlight. East-west split systems also work well.
Optimal tilt angle
For Port of Spain, the energy-optimal panel tilt is about 12° from horizontal.
Size your system right
For the average household in Trinidad & Tobago, a 4 kWp system (9 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 Trinidad & Tobago.
Gear to prepare for solar
Affiliate links — we may earn a commission.
Solar in other Trinidad & Tobago cities
Frequently asked questions about solar in Port of Spain
How much do solar panels cost in Port of Spain?
A typical 4 kWp residential solar system in Port of Spain, Trinidad & Tobago costs approximately TT$43,500 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 Trinidad & Tobago.
How is exported solar energy credited under net metering in Trinidad & Tobago?
Under a net-metering-style arrangement, the energy your system exports to the grid in Trinidad & Tobago is typically credited against the energy you import, so you are often billed mainly on the net amount. How those credits are valued, whether they roll over, and how long they last can vary by region and utility, so it is best to confirm the current terms with a local installer or your energy provider.
How much electricity do solar panels produce in Port of Spain?
A 4 kWp solar system in Port of Spain produces approximately 6,120 kWh per year, based on 4.2 peak sun hours per day and 1,779 kWh/m² annual irradiance.
What is the solar panel payback period in Port of Spain?
Based on Trinidad & Tobago's electricity rate of TT$0.388/kWh, a 4 kWp system in Port of Spain pays for itself in approximately 18 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 Port of Spain?
In Port of Spain, panels should ideally face south since it's in the northern hemisphere. The optimal tilt angle is about 12° from horizontal.
How many solar panels do I need for my home in Port of Spain?
A typical household in Trinidad & Tobago uses the equivalent of a 4 kWp system (9 panels). With 4.2 peak sun hours per day in Port of Spain, this covers most electricity needs. Use our calculator for a personalized estimate.