Reply to post: Re: re: Windmills are rubbish.

Re: re: Windmills are rubbish.

I would say 99% of inverters for domestic installations do meter their output.

Also the consumer passes those numbers on to the supplier so their FIT repayment can be calculated. So - all those numbers can be aggregated and presented in a spreadsheet.

My secondhand inverter not only meters itself, but it has a web page, so you can look at historic graphs.