Solar Energy in Lungtenzampa
Lungtenzampa is located at 27.5°N, 89.6°E in Bhutan. Here's what solar energy looks like for homeowners in this area.
Annual Irradiance
1,731
kWh/m²
Peak Sun Hours
4.1
hrs/day
4 kWp Output
5,956
kWh/year
Solar Score
30
/ 100
What does this mean for your roof?
Lungtenzampa receives approximately 1,731 kWh/m² of solar irradiance per year, which translates to 4.1 peak sun hours per day. This is moderate for residential solar energy production.
With a solar score of 30/100, Lungtenzampa ranks #23 of 23 cities in Bhutan for solar potential in our atlas.
A typical 4 kWp residential solar system (9 panels) in Lungtenzampa would produce approximately 5,956 kWh per year, sized for the average household in Bhutan.
The best months for solar production in Lungtenzampa are May – August, while the lowest production occurs during November – January. Being in the northern hemisphere, south-facing roofs capture the most annual sunlight.
Solar economics in Lungtenzampa
At current electricity prices in Bhutan (Nu.1.24/kWh), residential solar may not pay for itself within the typical 25-year panel lifespan without local incentives. Rising electricity costs or government subsidies could change this outlook.
System Cost
Nu.365,000
4 kWp, before incentives
Annual Savings
~Nu.7,390
At Nu.1.24/kWh
Payback Period
25+ years
Exceeds panel lifespan
25-Year Net Result
−Nu.128,000
Cost exceeds savings
These are approximate figures based on a standardized household consumption of 5,000 kWh/year and an estimated electricity rate of Nu.1.24/kWh in Bhutan. Local incentives may reduce the upfront cost — check current subsidy, tax-credit, or VAT programs in Bhutan, 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 Bhutan. 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 Bhutan
Exported energy spins your meter back, offsetting what you draw later.
In Bhutan, 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 Lungtenzampa 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 Lungtenzampa, the energy-optimal panel tilt is about 30° from horizontal.
Size your system right
For the average household in Bhutan, 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 Bhutan.
Gear to prepare for solar
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Solar in other Bhutan cities
Frequently asked questions about solar in Lungtenzampa
How much do solar panels cost in Lungtenzampa?
A typical 4 kWp residential solar system in Lungtenzampa, Bhutan costs approximately Nu.365,000 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 Bhutan.
How is exported solar energy credited under net metering in Bhutan?
Under a net-metering-style arrangement, the energy your system exports to the grid in Bhutan 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 Lungtenzampa?
A 4 kWp solar system in Lungtenzampa produces approximately 5,956 kWh per year, based on 4.1 peak sun hours per day and 1,731 kWh/m² annual irradiance.
What is the solar panel payback period in Lungtenzampa?
At Bhutan's current electricity rate of Nu.1.24/kWh, a solar system in Lungtenzampa is unlikely to pay for itself within the typical 25-year panel lifespan without subsidies or incentives. However, rising electricity prices or local incentive programs could improve the economics significantly.
Which direction should solar panels face in Lungtenzampa?
In Lungtenzampa, panels should ideally face south since it's in the northern hemisphere. The optimal tilt angle is about 30° from horizontal.
How many solar panels do I need for my home in Lungtenzampa?
A typical household in Bhutan uses the equivalent of a 4 kWp system (9 panels). With 4.1 peak sun hours per day in Lungtenzampa, this covers most electricity needs. Use our calculator for a personalized estimate.