1 ENERGY

About 1 ENERGY

1 ENERGY is a Singapore clean energy company specialising in integrated solar and battery storage solutions, offering clients the ability to combine rooftop solar generation with on-site battery energy storage systems (BESS) for greater energy independence and resilience. With 56 Google reviews at 5.0 stars, 1 ENERGY has positioned itself as the specialist of choice for clients who want to go beyond standard solar and capture the additional benefits of battery storage — including peak demand management, backup power capability, and enhanced self-consumption of solar generation. 1 ENERGY's integrated approach combines solar PV design with battery system sizing based on the client's consumption patterns, grid tariff structure, and resilience requirements. For commercial clients, this can deliver measurable reductions in peak demand charges — which can represent 20–30% of a commercial electricity bill in Singapore — by discharging the battery during peak tariff hours. For residential clients, battery storage increases solar self-consumption, reducing the amount of generation exported to the grid and improving the effective payback period of the combined system. The company works with leading battery storage manufacturers including Tesla Powerwall, BYD, and Fronius, and their system integration capability covers the full installation from solar panels through inverters, battery management systems, and smart energy management software. 1 ENERGY's 5.0 Google rating reflects a client base that values the technical sophistication and innovative approach they bring to energy system design. For Singapore clients who want to maximise the value of solar through battery integration, 1 ENERGY is the top specialist in the market.

Highlights

• #10 Best Solar + Battery Storage
• 5.0 / 5.0 Google Rating
• 56 Verified Google Reviews
• Singapore Based

Customer Review

"1 ENERGY designed an integrated solar and battery system for our restaurant. The battery handles our lunchtime peak demand and the solar covers about 60% of our base load. Our electricity bill has dropped by SGD 800 per month and the backup capability during the last grid outage was invaluable."