LEIN project Medco Ratch Power Riau · Pelalawan · 47.52 kWp on the office building roof
Sunshine, engineered.
Since 2016, LEIN Power has designed, built and maintained rooftop solar for industry and commercial buildings, and hybrid solar with a battery for homes.
The sun is rising and everything is coming to life, so energy use goes up. There is not enough solar power yet, so the home draws power from PLN.At 07:00: Solar 1.2 kW, Inverter supplying 1.2 kW, PLN 0.4 kW, Home 1.6 kW, Battery standby (20% charged).
kW figures are rounded from 1 day of data from a LEIN hybrid home system (7.74 kWp, 15 kWh battery); on-grid uses the same data without the battery. Cloudy, Rainy and Blackout are simulated. Off-grid is a simulation with the same home and panels, no PLN, a battery for about 2 days of use, and a diesel genset as backup. Image: illustration, not a LEIN project.
MW figures are a simulation: a 24-hour factory on three shifts with a working-day load of about 5 MW and 2.8 MWp of on-grid rooftop solar with zero export. Solar output is scaled from LEIN system data for a clear day. In the simulation, the diesel genset is sized at about 130% of the PLN connection and can run for up to about 6 hours, so the whole load keeps running during an outage. Image: illustration, not a LEIN project.
Figures are a LEIN simulation of an island resort in eastern Indonesia without PLN, using about 40 kW day and night, with 220 kWp of solar, a 720 kWh battery (BESS), a 100 kVA diesel genset and an energy management system (EMS). Solar output follows LEIN’s energy model for a clear day; a cloudy day gives 30% of that and a rainy day 10%. Over a simulated year, the genset alone would use about 119,000 litres of diesel; with solar and the BESS, about 10,000 to 29,000 litres, depending on solar output, BESS cooling and BESS ageing. Image: illustration, not a LEIN project.
See how many panels fit on your roof and what they save.
*Estimates: 28,467 kWp installed × about 1313 kWh per kWp a year (solar yield in Jakarta, Global Solar Atlas, World Bank and Solargis) × 0.87 t CO₂ per MWh (Java–Madura–Bali grid emission factor for 2019, set by the Ministry of Energy and Mineral Resources in 2021).
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PT Lembaga Energi Indonesia was founded in Jakarta in 2016. Our licences and certificates can be checked at their official sources.
Solar is not only the right decision for the planet but also the right decision for your wallet. We size every system to your daytime use, because since Minister of Energy and Mineral Resources Regulation No. 2 of 2024, power exported to PLN no longer reduces your bill.
Designed with you in mind
Premium Tier 1 systems are our first choice for every installation. Each system is mounted with the method that suits your roof type.
Clear warranties, supported claims
Manufacturer warranties on the equipment, a 1-year LEIN workmanship warranty, 10 years on the mounting structure, and free support with warranty claims.
Xurya EPC Appreciation 2026 for the most projects completed in the category above 10,000 kWp, 3rd among the top 10 EPCs at Solar Academy Indonesia 2025, and an appreciation from the Minister of Energy and Mineral Resources.