A household solar programme would need to account for roofs that cannot carry panels and limits on domestic battery storage. The estimate of several days of storage in an average home is challenged as optimistic, while pumped storage is suggested as support at a larger scale. Building age alone does not settle whether a roof is suitable: Clarke cites a survey of his own 1930s bungalow as a case where installation is feasible. Wider coverage would also help identify homes that still need support during an emergency. Roof orientation matters, with the final correction favoring an east-west ridge that provides a south-facing slope. Service equipment able to feed electricity back into the grid is identified as a major retrofit constraint.
Notable Point · 4:45:00-4:48:31
What a household solar programme would need to check
Roof strength and orientation, realistic storage capacity and suitable electrical service equipment constrain a large household solar retrofit programme.