Dear Editor
‘Net Zero’ politicians and the BBC’s increasingly demented Justin Rowlatt – ‘renewables overtake coal’ – boasting about our ‘world-leading renewable generation’ display breathtaking ignorance.
With our National Grid teetering on the verge of blackouts, here’s a startling fact for the gullible – wind turbines do not produce any energy at all, full stop.
Stand one in a giant hangar and see what happens, or doesn’t.
Place a solar farm in a dark hangar and see what happens, or doesn’t.
The First Law of Thermodynamics states that energy cannot be created or destroyed; it can only be converted from one form to another.
So-called ‘renewables’ should really be called energy collectors or converters. They collect energy that already exists, in the form of wind or sunlight, and convert what little there is into electricity.
Therein lies the perpetual problem. If it is dark, still and cold, typical midwinter conditions, there is no energy to collect, thereby literally leaving us in the dark! As we frequently discover, in still, frosty weather, wind ‘energy’ is a technological dead-end.
The intrinsically better sources have what is known as greater ‘energy density’. For example, water is 800 times denser than air, so hydro is always going to give a much greater conversion capture than wind. Coal is intrinsically denser than wood, so much more thermodynamically efficient. A coal fire burns much hotter than wood. Nuclear working at atomic level wins the energy density stakes hands down.
The other hugely damaging problem with parasitic ‘unreliables’ is their voracious material, maintenance, repair, replacement and land requirements. All will be worn out and have to replaced, at astronomical cost, by 2050.
At present, all the world’s energy plants occupy around 0.5 per cent of the Earth’s surface. Trying to capture enough energy from solar and wind would require an astonishing 25-50 per cent of the Earth’s surface! This will leave nowhere for farming, food production, forests, fishing, nature, wildlife habitats, biodiversity, recreation or us.
Before the planet is completely carpeted and wrecked with ‘unreliables’, it is high time the collective density of our deluded, ever-so-green, politicians realised this.
Yours, trying to protect our natural world not destroy it,
George Herraghty
Scotland

SAS Volunteer

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