Can a Solar BESS Cut a Meralco Bill Without Solar Panels?

• Yes. Storage alone can shave the demand peak and shift consumption away from the highest tariff windows, because the peak interval that sets a demand charge repeats for the whole month.
• Adding solar improves the case further: stored energy is then generated on site instead of bought at the commercial tariff.
• Payback for commercial sites with high demand charges and evening peaks typically models at 4–7 years using the customer's own bills.