Abstract
Electricity networks currently face massive investment requirements. This paper argues that, given the investment requirements, (international) benchmarking is not an adequate tool for the regulation of transmission system operators (TSO). Errors in the outcomes of benchmarking will likely distort network investment and therefore the costs of doing it wrong are high. Whilst acknowledging the merits of network regulation as such, the paper discusses options to reduce the weight of benchmarking in TSO regulation and discusses options that do not rely on benchmarking at all.
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