Last reviewed: April 2026
Commercial battery storage allows businesses to take control of when and how they use electricity. By storing energy during low-cost periods and discharging it when tariffs are highest, battery systems reduce peak demand charges and lower the average cost of electricity across the day.
For businesses with existing or planned rooftop solar, battery storage captures surplus generation that would otherwise be exported to the grid at low value. Instead, that energy is stored and used on-site during evening or overnight periods, maximising self-consumption and the financial return on your solar investment.
KLY Energy delivers commercial battery storage projects from energy audit through to commissioning, with quality-controlled delivery by accredited engineers. Systems are sized and specified to match your consumption profile, ensuring the investment delivers measurable returns. Funding options including CapEx and alternative structures are available.
Benefits
Key benefits
Peak demand reduction
Discharge stored energy during peak tariff windows to reduce maximum demand charges. Many businesses save 15 to 30 per cent on capacity charges through peak shaving alone.
Tariff optimisation
Charge from the grid during off-peak periods and discharge during expensive peak hours. Time-of-use tariff arbitrage delivers savings even without solar generation.
Energy resilience
Maintain power to critical systems during grid outages. Battery storage can provide backup power for essential operations where backup capability is specified in the system design.
Project delivery
Delivery scope
- ✓Energy audit and demand analysis
- ✓System sizing and specification
- ✓Battery procurement and installation by certified installers
- ✓Integration with existing solar generation
- ✓Commissioning and performance monitoring
How peak shaving works
Many commercial electricity tariffs include capacity charges based on your highest half-hourly demand in a given period. A battery system monitors your real-time consumption and automatically discharges when demand approaches its peak, flattening the demand curve. This reduces the measured maximum demand, lowering capacity charges on your bill without any change to how your business operates.
Pairing with solar
When paired with rooftop solar, battery storage captures surplus generation that would otherwise be exported at low export rates. That energy is stored and used on-site during the evening or overnight, increasing self-consumption from a typical 50 to 70 per cent up to 80 to 95 per cent. This significantly improves the financial returns of the combined solar and storage system.
Suitability
Best for
Warehouses
High energy demand with clear peak periods, ideal for peak shaving and solar storage.
Manufacturing
Process-driven demand profiles where peak reduction delivers significant cost savings.
Multi-tenanted buildings
Shared battery systems that reduce landlord electricity costs and enhance building value.
Public sector
Schools, hospitals and council buildings with net-zero targets and resilience requirements.
FAQ
Frequently asked questions
Peak demand reduction (also called peak shaving) uses stored energy to reduce your site's maximum electricity draw during high-tariff periods. Many commercial electricity contracts include capacity charges based on your highest half-hourly demand. By discharging a battery during these peaks, you reduce the measured maximum demand and lower your electricity costs without changing how your business operates.
Ready to reduce your peak demand charges?
Every project starts with a conversation. Tell us about your energy profile and we will outline what is possible.
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