Barren solar farms

SIR – Solar panels are great; we have them on the roof and my hope is that eventually, with batteries, we’ll mostly be off-grid.

However, solar panels are anathema when sited on good farmland, and even worse on precious places such as wetlands and marshes. They threaten the natural world we are trying to save.

Such land is used because it is cheap and flat. Yet everywhere there are warehouses and supermarkets that have vast roofs, as wide as airport runways, but no solar panels.

It is time for planning laws to insist that every new warehouse and supermarket must be strong enough to support roof panels; for extra business rates to be charged on roof areas that do not have solar panels; and for a heavy rates levy on all solar farms on fertile or precious land. EG Nisbet

Egham, Surrey