Hello @Ollie2611 and welcome! Have you explored our heatpumpmonitor.org website, sounds like exactly what you are after? There are a number of threads on here discussing findings so far e.g:
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Hello @Ollie2611 and welcome! Have you explored our heatpumpmonitor.org website, sounds like exactly what you are after? There are a number of threads on here discussing findings so far e.g: