Solar + BESS ROE calculator

Solar + BESS return on equity

Choose rooftop or open access, then compare the two ways to own it: CAPEX or OPEX for rooftop, captive or group captive for open access.

ROE here is cash ROE: net annual cash flow divided by the money you put in, before tax and depreciation, as in the cashflow workbook. For a bank loan, the repayment is the equal monthly instalments (EMI) on the loan amount, for the loan tenure. Confirm tariffs and charges with current orders before deciding.