alt Hacker NewsIf you use Renewable Energy Sources, it may happen there will be no wind or no sun. So you need some auxiliary source of energy. If you want it at hand, this must be something with fast cold start. So black/brown coal power plan will not help you, similarly nuclear. You need to burn either gas or "biomass", that is wood/turf, etc. Those power plants have about 1h cold start.
Hence, in order to have RES you need to emit CO2. Deal with this. The other option, and UK goes that way, is to purchase electricity when it is lacking, paying spot prices, that's why they have such a big electricity bills, economy is down, people get mad and vote psychos.
The solution is dead simple, as France example shows. Simply use nuclear power plants and does not bother with RES, as it does not make any sense now.
Maybe, when we have technology to store efficiently electricity at scale, we can start using RES. But we just do not have that.
The end result now is that electricity in Europe is the most expensive on the World, so all manufacturing is moved to Asia, who does not bother with climate that much, that's why, despite all Europe efforts, overall CO2 emission keeps growing.
Replies
> If you use Renewable Energy Sources, it may happen there will be no wind or no sun
If you have to import fuel, it may happen that no ships can get through. Or the fuel becomes too expensive to buy because of war, natural disasters, or market forces. Ain't nobody turning off the sun or wind.
> Maybe, when we have technology to store efficiently electricity at scale
Actually we have it now.
> If you use Renewable Energy Sources, it may happen there will be no wind or no sun.
Yes, but this rarely happens, so any potential solution should be designed around it being idle 99% of the time.
> Those power plants have about 1h cold start.
Gas turbines can spin up significantly faster. However, the weather is quite predictable, so it is unlikely that this will be needed. Besides, battery storage is the perfect solution as an ultra-fast ramp-up holdover source until the turbines are at 100%.
> Hence, in order to have RES you need to emit CO2.
Or you equip the handful of gas turbines you use to make up for that 1% gap in renewables with carbon capture? It's not ideal, but it is very much doable.
> Simply use nuclear power plants and do not bother with RES
... and have your electricity be even more expensive?
Pumped storage hydro is extremely cheap and efficient and has been around for more than a century. LiFePo4 batteries are now cheap enough that they're a cost-competitive alternative. Flywheel storage plugs the inertia gap nicely.
The tech exists - it's mostly just a matter of political will. The economics already justify it. People are making considerable money by starting up BESSs (Battery Energy Storage Systems) and doing time arbitrage on energy.
cf. Iberia, who recently learned that effective storage and intertial pick-up is integral to a stable and efficient power network, and are now spending heavily on both.
> this must be something with fast cold start. So black/brown coal power plan will not help you, similarly nuclear.
Nuclear plants provide base load and they are extremely fast at ramping up/lowering production. All modern nuclear plants are capable of changing power output at 3-5% of nameplate capacity per minute: https://www.oecd-nea.org/upload/docs/application/pdf/2021-12...
You don't shut down power plants. None of the power plants ever do a "fast cold start"
> The end result now is that electricity in Europe is the most expensive on the World, so all manufacturing is moved to Asia
The production moved to Asia due to extremely cheap labor, not due to electricity costs.
> If you use Renewable Energy Sources, it may happen there will be no wind or no sun
I still find it staggering that people feel like this is something that needs to be said as if it’s surprising or a novel idea. Do you really believe smart people haven’t been working through these challenges for decades?