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Windtech International November December 2024 issue

 

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The Berlin-based Think-and-Do Tank Energy Watch Group (EWG) has presented a legislative proposal to stimulate the system integration of renewable energy in Germany. The underlying purpose of the policy proposal is to allow renewable energy sources to finally assume responsibility for the system security of the power supply – i.e. to cover the required energy demand at every hour of the year.
 
With a so-called combined power plant tariff, the instrument intends to stimulate investments for full demand coverage by 100% renewable energy. Based on own techno-economic cost estimates and a legal examination of EU regulations, the EWG proposes a fixed-feed-in-tariff of 8 cents/kWh, supported by a sliding market premium. 
 
While renewables keep setting records in terms of their shares of national electricity mixes – Germany has recently hit the 50% mark –, a full transformation to an entirely renewable-based energy system is not yet widely regarded to be a tangible reality. One of the main reasons is the prevailing mistrust of the ability of renewables to provide year-round supply. Many scientific studies have already shown that a complete conversion to renewables is not only critical for reasons of climate protection, but also that it is technologically feasible (in combination with storage technologies and digital control technology) at any hour of the year and at cost-effective prices. What is still missing, however, is a legal basis to enable the market penetration of reliable and adequate 100% renewable energy systems.
 
The law would create a market for the very large number of start-ups and established companies that are in the starting blocks with innovative system developments for storage, digital controls, green power generation and sector coupling, but do not yet have a viable market environment to generate large-scale privately financed investments.
 
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