Two main "alternative" energies are exploited in Germany.
- Wind through wind power plants
- The sun through photovoltaic power plants
First observation: Production from “alternative” power plants is unstable. An installed wind or photovoltaic KW produces this KW only 20% of the time.
80% of the remaining time must be produced from alternative energy. Variations in production are very rapid.
Second observation: Nuclear does not absorb these variations. The 80% of remaining production is therefore ensured by thermal
(case of Germany) and by hydraulics (case of Denmark)
In Germany, 1 KW wind or photovoltaic installed, it is 1 Kw thermal opposite that must be kept or installed.
Wind or photovoltaic production covers 20% of the time, the 80% of the remaining time is thermal with gas emission of all kinds.
To reach 20% of energy from renewable sources, Germany is inaugurating a new coal-fired power station (Yes, yes, it's crazy but it's reality, these are new generation "clean"
) Nuclear power plants not being compatible no longer exist, we will delete them!
In Denmark, they have a lot of water and hydraulic power stations. So wind and photovoltaic can save water. For them ... it's all good.
For France, there is water but not like in Denmark, all just enough to regulate the variations in consumption that nuclear cannot absorb its slow reaction. And, that is not always enough, so France keeps thermal power plants (some of them).
The integration of renewable in France (wind and photovoltaic) on the network means and I'm afraid a restart of thermal ...
In Germany, by well-established communication methods, we were led to believe that the wind was clean. The awakening is very bitter. We can no longer do without thermal power plants. The powerful lobbies have maneuvered well! Some begin to understand, I pay my electricity 0.16 € / kw!
Conclusion, this brings a lot to some.
Each KW renewal from photovoltaic or wind turbines injected into the network requires 4 KW from thermal.
I am 100% for renewable but individual!
We recharge the batteries of his VAE and maybe soon of his car. We fill the reserve of pressurized water, we supply the lighting of the aquarium during the day with photovoltaic panels. We install solar panels, a small wind turbine to heat the water, the house ....
Everyone has to analyze their sources of consumption and adapt their strategy to reduce their energy impact. These solutions seem to me much more positive and effective than accepting to pay more for its energy with hypothetical renewable proportions ...
The first thing and the best thing that you can do individually at first is SAVE.
We can clearly see that resolving our energy impact is not simple. Integrating renewable energy into a network poses delicate problems ...
The German network, now comprising considerable wind power, has become very vulnerable and even unstable ... It has succeeded in causing half of Europe to be cut off, with its origins being an unfortunate occasional competition linked to the maintenance of a line and a small gale ... This one generating a one-time over-voltage which causes a cascade collapse ...
The other alternatives: The production of bio-fuel is an alternative but it is already needed so much for transport ... that it is not close to being used in a power plant. For bio-gases, it's a bit the same, however, biogas-based production is continuous.
