Society has better things to do with community cash than squandering it on massive green energy toys and battery baloney
Every day some green energy promoter or a battery salesman tells us how green energy with battery backup will supply Australia’s future electricity needs.
A battery stores energy. Energy can be stored using lead-acid, nickel/cadmium, lithium, molten salt, pumped hydro, hydrogen, flywheels, compressed air or some other smart gizmo. But NOT ONE battery produces new energy – they simply store and discharge energy produced by other means. They all deliver less energy than they consume. Moreover, to manufacture, charge, use and dispose of batteries consumes energy and resources.
The idea of producing reliable grid power from intermittent green energy backed up by batteries looks possible in green doodle-diagrams, but would be absurdly inefficient and expensive.
Solar works a Six hour day
Consider a solar panel which is rated to collect say 100 units of energy per day at full capacity, in full mid-day sunlight, with a clean panel, properly aligned to face the sun.
No solar energy arrives overnight and only minimal amounts arrive during the three hours after dawn or before dusk. That means that solar energy can only be collected for about 6 hours per day, providing it is not cloudy, raining or snowing. No amount of research or regulation will change this – the solar energy union only works a six-hour day and takes quite a few sickies. So instead of feeding 100 units of energy per day into the grid, at best, the panel supplies just 25 units.
Can the addition of batteries give us 24/7 power from solar?
To deliver 100 units of energy in 24 hours will require an…
click here to read more.