Wind energy grew by 50% in 2023, is it enough?

50% growth in a year, is the fastest pace recorded in the last 20 years. The COP28 has a target of tripling clean energy capacity by 2030, and this speed keeps this target in contention.

Worldwide renewables have now reached 510 gigawatts of energy, which is fantastic, and means that humanity stands a good chance of pushing out fossil fuels in the near future. However, it suggests that renewable power is behind target, with the expected increase being 250% by 2030, rather than 300%.

Still, it is growing, and many countries are only slowly getting round to making their own progress. Another positive, is the increasing number of houses that are putting solar panels on their own roofs – with the huge rewards for investing in solar (and other home generation) and the reducing costs, the finances are increasingly obvious. While this is initially, meaning that well off people in the developed world are doing this, there are large parts of Africa, which are skipping large joined electricity networks, and getting remote communities off grid one by one.

It seems inevitable, that wind and solar are going to supply the majority of our energy needs in the future, however, the faster this happens, the better it is for all of us.

Wind-turbines on a track? cheaper even than other forms?

Above, is an interesting video done by one of the more popular youtubers in this space. It looks at a fascinating new idea about how we could harness the wind.

You might well ask, why do we need a new way? and that is a good question. The simple fact is that in the current model that we use with the standard wind turbine, they are reaching the biggest size that they can possibly be (there is a wind turbine in China, which is 50 storeys high). It is likely the simplest way to harness wind power at sea, but what about power for a single building or a small village? This new way of harnessing the wind has got Bill Gates attention with a cost of roughly 1/3. Being only 25m tall rather than the normal height, it could be placed in far more places, without reducing the power given. Furthermore, on this system, the whole of each blade actually helps pull around the track, rather than just the tip. It is true that these are early in their process, but why is this useful. Well with this idea, you could for instance put a track over a long terrace of houses, or even over a stretch of motorways. Furthermore, it is possible to put all of the parts of an 2.5mw turbine inside a single lorry.

Installation costs are Airloom energy $0.21  per watt installed, vs wind farm $1.25 per watt on standard wind turbines. Multiplying that up, Airloom would cost $210,000 per megawatt hour, while a windfarm would cost $1,250,000. Looking at it differently, if Airloom succeeds, you would be able to install almost 6megawatt hours of Airloom for every megawatt hour of normal wind turbine. It should be noted that in recent times, solar has overtaken wind as the cheapest form of electricity generation. This to reverse this gain for a very long time. 

 

 

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