After many years of living off-grid with a small 600w solar array, I have this week been successfully connected to the mains. The immediate benefit was plugging in a fridge and having a cool beer.
Living off-grid has done nothing for me if not helped me appreciate the enormous value of reliable electricity supply. In this part of the world, solar is extremely variable at any time of the year. I could only use the washing machine if I was sure of several hours of clear sunshine, for example. Living this way, although winning me Brownie points for virtue from visitors concerned about use of fossil fuels, is neither more “sustainable” nor cheaper. I have noticed a phrase used by those who work in the renewable energy sector: “free energy” as in “use a generator when the sun/wind is not there, and the ‘free’ energy the rest of the time.” But none of this is ‘free’- this is a deception as misleading as conspiracy claims of suppressed ‘free energy’ machines.
(If you believe in such conspiracy theories, or the plausibility of “free energy” I suggest a thought experiment: what would a free energy machine look like? How big might it be? Would just one do for the whole world, or would every household and industrial plant need their own? How would the energy be transmitted to the users? Would that be ‘free’? The point is of course, wind and solar power are indeed free, but getting them to a usable form is not.)
I know several people around West Cork who live off-grid with wind, solar or both, and even those with bigger systems- which would have cost substantially more than mine (EUR5000 in 2009)- routinely rely on petrol or diesel generators when they have not enough “free energy” to keep the lights on. Since I will now be saving the costs of running a generator, I expect in the winter at least to be actually saving money, in addition of course to having access to far more power when I need it.
The draw-back with off-grid living is of course the storage issue: batteries are expensive and have a life-expectancy of only a few years. Grid-tie and national renewable options have the same draw-back: you cannot store electricity, and only having access to power at the whim of nature is not much use to anyone: unlimited “free” energy that was available only, say, between 3-4am would be of little benefit with no means of storing it.
The day after my power was turned on I awoke to reports that the UK could be facing blackouts very soon. The Guardian argues that this is because energy companies shutting gas plants that do not make good returns, because they have been undercut by cheap imports of coal from America and elsewhere. Lomborg argues on the other hand that the UK has its priorities wrong by opting to continue to subsidize expensive off-shore wind while sitting on the world’s biggest deposit of shale gas.
It is wrong to see wind and solar as “clean” when they clearly also involve large-scale industrial processes and produce toxic waste; neither are they in anyway “free”- indeed, some analysts claim the drop in price of pv panels is largely driven by subsidies and “energy from solar PV is currently about one order of magnitude more expensive than energy from coal.”
The Coomhola and Borlin valley where I live is a remote part of west Cork which only achieved electrification in the 1970s. (High-speed broad-band access has still to achieve this!) According to Hidden Gold- History and Folklore of the Coomhola and Borlin Valleys by Julia Kemp (1998)
Electricity came to Lower Coomhola in 1958, but did not reach the higher parts of the valley until 1974. It was offered previously but it was considered too much to pay another bill on top of the existing rents and rates.
My energy needs are still modest. I am not going to become suddenly profligate in my energy consumption. I was brought up to turn off lights and appliances when not in use and will continue to do so. I have spent extra money on energy-efficient LED bulbs in the hope that they will last much longer (despite my electrician scornfully telling me they were a waste of money).
This 4W LED bulb amply illuminates the whole room with a bright but soft light
In the times we live in, where it is fashionable to talk about “powering down” – as of course I also used to preach– I invite you to join me this week in celebrating the wonders of cheap electricity, available on demand, and spare a thought for the 1.2 billion people worldwide who still do not have access to this. Let’s work to change the environmentalist mindset that energy use is somehow bad and aspire instead to a world where everyone can Power-Up and have at least some of the benefits of electricity that the rest of us take for granted.
Electricity– seen on Bantry market last week