An interesting point would be that frequency of the AC power line is used for timing, what&#x27;s more your supplier will generally try to normalize the frequency <a href="http:&#x2F;&#x2F;www2.nationalgrid.com&#x2F;uk&#x2F;Industry-information&#x2F;electricity-transmission-operational-data&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www2.nationalgrid.com&#x2F;uk&#x2F;Industry-information&#x2F;electri...</a> if if they&#x27;re alternating too fast they&#x27;ll slow it down to compensate and give an accurate long-term average.<p>I wonder if home-solar converters have this feature built in :)