Lake Energy

"Lake Energy" is a useful technique in lakes created for sand extraction to enlarge riverbeds and thus prevent flooding and, in addition, to provide heat and cold for nearby users by way of heat exchange.

Diagram depicting the mechanism of Lake Energy (Source: Netherlands)

Download flyer of evaluated practice example (Netherlands):


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  • (in Dutch only)

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    Short description of measure

    Problem to be solved: Urban flooding

    Goal, potential objective: Water retention combined with heat exchange

    Developmental steps: Identification of suitable areas

    Instruments, implementation mechanism: Water plan

    Area of implementation: Local

    Responsibilities: Local authority

    Time horizon: Medium term

    Economic aspects: Exchange of heat/cold makes water retention profitable

    Promoters, obstacles, risks: Always a minimum of water needed; areas may not be accesible

    Side effects: Cooling the water in winter is also possible (skating)

    Bridge to mitigation: Less use of fossil fuels to heat in winter and to cool in summer