The future of renewable energy
I’ve been reflecting on the idea that the current energy system is starting to be swept along by a technological revolution somewhat akin to the “revolution” over the last 30 years in computers and telecommunications that has brought personal computers, mobile phones and the internet. Read some of the literature of techno-optimists and it is very common to suggest that Moore’s Law – the doubling of processing power on computers every year – provides an analogue for the sort of change that will apply in renewable energy systems – if only the politicians and carbon vested interest do not get in the way. In support of this idea people commonly point to the rapidity with which renewable systems like solar and wind have developed so far. The main thing is that the political support should be there…
I 60% agree but have severe reservations with carrying the analogy too far. There are some real differences that make the two “revolutions” largely non-comparable:
(1) The digital revolution has brought us many new products that do things we couldn’t do before – computers, mobile phones, the internet. That makes it attractive to people and companies and has sped adoption. The energy revolution does not bring new final end products – the end products are electricity (and heat and motion) which we already had. What it brings are many new ways of generating electricity (and heating and moving things).
(2) To pay for the energy revolution people must pay once for the new technology that generates the energy source (mostly as electricity) and once for products that are adapted to this new energy source (eg a petrol or diesel car to an electric car) – and perhaps a third time for the back up or storage to cope with intermittency in the renewable power source.
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