Solar + BESS: The Next Big Opportunity for Malaysian Businesses
Solar + BESS combines solar PV generation with battery storage so businesses can store excess solar energy and use it when it creates the most value — reducing bills, managing demand and improving resilience.

Why solar alone is no longer enough
Solar only generates electricity when sunlight is available, so generation may not match demand. A factory may generate strong solar at midday but peak in the morning, late afternoon or evening; a mall may consume high electricity after solar output drops; a cold store may need power 24 hours. Without storage, solar energy must be used immediately, exported or underutilised. With BESS, excess solar can be stored and used later.

What Solar + BESS means
The solar system generates electricity during the day; the BESS stores excess when generation exceeds consumption; later, the stored electricity is discharged when the site needs more power. Solar generates, BESS stores, the EMS controls, and the business saves.
Benefits for Malaysian businesses
Solar + BESS delivers value across cost, flexibility and sustainability:
- Higher solar self-consumption
- Lower maximum demand charges
- Better energy cost control
- Support for power expansion
- Improved ESG and net-zero performance
- Reduced exposure to rising electricity costs
Who should consider Solar + BESS?
It is suitable for sites with high bills, high maximum demand, existing solar, grid constraints or expansion plans, including:
- Factories and warehouses
- Shopping malls and commercial buildings
- Cold storage and data centres
- Industrial parks and logistics hubs
- Hospitals and hotels
- EV charging hubs
A business strategy, not just engineering
Solar + BESS is a business strategy that helps companies reduce costs, improve flexibility and future-proof operations. As energy prices, ESG requirements and grid constraints become more important, businesses that adopt Solar + BESS early may gain a stronger competitive advantage.
Frequently Asked Questions
Solar + BESS combines solar PV with a Battery Energy Storage System to store and use solar energy more intelligently.
BESS helps businesses store excess solar energy, reduce peak demand and improve energy cost control.
Yes — for factories with high bills, demand spikes or expansion plans.
Yes. In many cases BESS can be retrofitted to an existing solar PV system, subject to technical assessment.
Have a Solar + BESS project to discuss?
Solunar supports EPCC companies, developers and asset owners with technology, integration and O&M.