In reply to Renewable power there for the taking (Forum CCN 474); sun (EM) radiation and wind (kinetic) energy are free for the taking but the electricity derived from them is not.
Facilities are required to collect the diffuse energy over a wide area, convert the variable and intermittent electricity into a constant configuration of AC 240V 50Hz to be workable in our appliances and transmit it to the points of consumption.
Given the low capacity factors of intermittent energy and the material-intensive nature of the mining and manufacture required, these facilities will be costly, if not ruinously so.
“Renewables” zealots totally ignore the capital cost of these facilities, and they are not renewables – they have a finite life like all machinery.
Cheap energy is an oxymoron.
“Renewables” are really weather-dependent intermittents and cannot produce electricity as required.
Nuclear fission can produce electricity on demand and is carbon-free.
However, nuclear can only be considered as an interim measure at the moment because permanent disposal has not yet been solved.
An inconvenient and uncomfortable truth is that, at the present time, there is no immaculate solution to our energy needs.
Email, Feb 20
Charles Hemmings
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