As far as security - Fronius inverters (and other manufacturers) have a built-in API for remote shutdown / remotely disconnecting the solar power at your house.

As far as security - Fronius inverters (and other manufacturers) have a built-in API for remote shutdown / remotely disconnecting the solar power at your house. Some countries have so much household solar power that the solar feed-in can overload the power grid. Governments have required the ability to remotely deactivate a user's solar system to prevent grid overload & maintain grid viability. Here's a Fronius document on the remote disconnect API setup: [PDF] https://www.fronius.com/~/downloads/Solar%20Energy/Quick%20Guides/SE_QG_SA_Gov_Smarter_Homes_SAPN_Fronius_Remote%20Disconnect%20Setup_EN_AU.pdf https://www.fronius.com/~/downloads/Solar%20Energy/Quick%20G... "This Application Guide describes the procedure to setup a Fronius inverter system to comply with the SA Smarter Homes regulation of remote disconnect/reconnect when selecting the “SA Power Networks / Fronius –Fronius – API control of internet connected Fronius” Relevant Agent option." Here's a Fronius webinar (audio with slides, hour long) discussing the remote disconnect functions, jump to 2:42 if the link doesn't automatically take you there. The first couple of minutes should give the overview: https://youtu.be/KR8jxANwii4?t=162 https://youtu.be/KR8jxANwii4?t=162