Very long run of LV Cabling

Why is it that the Government thinks that energy use can virtually stop? Typically a large festival needs 2 500 kVA generators per stage, one as running backup in case of problems. I, therefore, need 200 kVA X 18 hours of batteries per day that can manage a peak discharge of 500 kW. This is 9 MWhr / day and some festivals last 5 or more days. I would need 2 sets of inverters and some backup batteries. From Tesla, such a battery would cost at least 2 million pounds for each day, and a pile of lorries rather than one to move it. It is therefore fairly clear that this measure is simply to raise taxes from the entertainment industry (again), and not about anything else. BTW such large batteries would be very dangerous being transported, an accident could start a pretty big and dangerous fire, much worse than a diesel tanker accident which would probably not catch fire and contains more than 10 times as much energy. Imagine a feature film working for 2 months. Less power but much longer. Or a television show like Wimbledon. Mains power may be available in some places, but generators are the mainstay for all this work, partly because they cost less and partly because of the convenience of turning up and power is immediately available.

Why is it that the Government thinks that energy use can virtually stop? Typically a large festival needs 2 500 kVA generators per stage, one as running backup in case of problems. I, therefore, need 200 kVA X 18 hours of batteries per day that can manage a peak discharge of 500 kW. This is 9 MWhr / day and some festivals last 5 or more days. I would need 2 sets of inverters and some backup batteries. From Tesla, such a battery would cost at least 2 million pounds for each day, and a pile of lorries rather than one to move it. It is therefore fairly clear that this measure is simply to raise taxes from the entertainment industry (again), and not about anything else. BTW such large batteries would be very dangerous being transported, an accident could start a pretty big and dangerous fire, much worse than a diesel tanker accident which would probably not catch fire and contains more than 10 times as much energy. Imagine a feature film working for 2 months. Less power but much longer. Or a television show like Wimbledon. Mains power may be available in some places, but generators are the mainstay for all this work, partly because they cost less and partly because of the convenience of turning up and power is immediately available.