A few days ago the CEO of Siemens Energy, Christian Bruch, appeared on CNBC’s “Squawk Box Europe” to talk about the myriad problems facing the wind industry.
Bruch said: “Never forget, renewables like wind roughly, roughly, need 10 times the material [compared to] ... what conventional technologies need...So if you have problems on the supply chain, it hits … wind extremely hard, and this is what we see.”
That is confirmation of the Iron Law of Power Density which says the lower the power density, the higher the resource intensity.
Siemens and other companies that produce wind turbines are being hammered by huge losses. Siemens and GE are losing hundreds of millions of dollars per year. Why?
Because of the material intensity of their projects. Those losses are being driven in large part, by the surging cost of metals like zinc, nickel, neodymium, and copper.
If your power plant requires 10 times more of those commodities than other forms of power generation, it’s readily apparent why the Siemens boss is saying his company is having “problems on the supply chain.”
All of this is more reason why we need energy sources with high power density. Specifically, N2N, natural gas to nuclear, is the obvious way forward if we are serious about reducing CO2 emissions. Low material intensity is just one of them. Add the fact that both sources are proven, low- or no-carbon, affordable, and scalable, and it quickly becomes clear why I’ve been advocating for N2N for more than a dozen years.
In summary, the Iron Law of Power Density will not be repealed. Wind energy is a dead end and the CEO of Siemens just explained why.
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