@paul_briley @TerryReintke Well done for mentioning geothermal Paul - Britain and Ireland are sitting on top of hot rocks (depending on how deep one drills the boreholes): an almost untapped source of thermal energy suitable for community and district heating projects, horticulture, retail, warehousing and some light industries (in addition to heating). No need for hydraulic fracturing. Just visit the baths in Bath and dip your finger in the hot spring water to feel the potential!