Technical FAQs 4

What is adiabatic energy storage?

Today‘s plants use natural gas for this. Valuable efficiency percentages are lost. RWE Power is working along with partners on the adiabatic compressed-air energy storage (CAES) project for electricity supply (ADELE). „Adiabatic“ here means: additional use of the compression heat to increase efficiency.

What is Adele & RWE Power?

ADELE is bundling the know-how and experience of a power-plant operator, the manufacturing industry and research in an effort to clarify the open issues of the technology. RWE Power is coordinating the project. As future operator, it is drawing up the requirement profile.

Why is Adele a smart solution?

"The massive and deliberate expansion of wind power requires smart solutions to ensure a non-stop continuous electricity supply. By means of the ADELE project, we take the lead to rapidly develop an efficient storage option", said Dr. Juergen Großmann, Chief Executive Officer of RWE AG.

How efficient are Germany's pumped-storage power plants?

Efficiency is between 75 and 85%. Today, Germany has pumped- storage power plants producing a total of about 7,000 MW. The expansion potential is severely limited, especially in northern Germany where the balancing need is greatest.

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