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🇱🇰 Sri Lanka

Calculateur de Batterie Solaire — Sri Lanka

Alimentez votre maison avec le soleil tropical du Sri Lanka

Electricity price
Rs 35 / kWh
~$0.120 USD (CEB)
Solar irradiance
4.6 kWh/m²/day
Tropical — moderate seasonality
Tariff trend
Rising sharply
Post-crisis rate increases
Avg system cost
$900 - $2,500
EXW reference price

Why go solar + battery in Sri Lanka?

Sri Lanka's energy landscape has been transformed by the recent economic crisis. CEB tariffs, which had been relatively stable, rose sharply as the government removed subsidies and adjusted to new fuel pricing realities. At ~Rs 35/kWh, household electricity bills have become a major expense for many families, making solar + battery an increasingly attractive investment.

The country receives 4.6 kWh/m² of daily solar irradiance, with the dry season (January-March) offering peak generation. Even during the monsoon periods (May-September in the southwest, October-January in the northeast), solar output remains viable — the tropical latitude ensures decent light levels year-round. Battery storage is key to managing the seasonal variation.

Key advantage: Sri Lanka has a net metering program through CEB that allows solar homeowners to offset their consumption. While the policy has seen adjustments, self-consumption with battery storage offers the best return by maximizing the use of your own solar power. The growing solar installer network in Colombo, Kandy, and Galle makes installations accessible.

Recommended system size

City Home

2-4 kWh
1-2 kW solar
Colombo apartments, 1-2 bedrooms
Est. $900 - $1,500

Suburban

5-8 kWh
3-5 kW solar
Standard houses, 3-4 bedrooms
Est. $1,500 - $2,500

Large / Estate

10-15 kWh
5-8 kW solar
Large homes, tea/rubber estates
Est. $2,500 - $5,000

Why Sri Lankans are switching

  • ✓ Post-crisis tariff hikes have made solar more cost-effective than ever
  • ✓ Net metering through CEB allows you to offset grid consumption
  • ✓ Tropical sun provides reliable year-round generation with battery backup
  • ✓ Growing number of qualified installers and competitive equipment pricing

Things to consider

  • ⚠ Monsoon seasons reduce solar output — size battery for cloudy periods
  • ⚠ Net metering policy has changed recently — verify current CEB regulations
  • ⚠ Imported equipment costs have risen due to currency depreciation
  • ⚠ Consider a hybrid inverter for seamless switching between solar, battery, and grid