@dolfs,
The “Solar to Home” field showed up in the Web App back in early November along with a few other battery-related metrics. Those new fields were only revealed in the Web App and were turned off once Sense took a closer look (thanks to @dannyterhaar and @JuliaAtSense ). I think we figured out at that time that the values were static (non-changing), not yet operational. Since “Solar to Home” appeared in that same group of new fields and is only visible in the Web App, I’m pretty sure that you shouldn’t have any expectations for it right now - maybe just a stocking stuffer for things to come