I had a heat pump fitted a couple of months ago, cosy 9, all working well, I now have solar panels and 10 kv battery going in a couple of weeks, I've been looking at tarrifs and find that Octopus are more expensive than a lot of the overs, has anyone with a heat pump switched suppliers if so what did they use for a app to control solar and the heat pump? secondly who did you switch too and did you have any problems ?
