I’ve been working on integrating my NIBE S1155 boiler with solar panels, and it’s been quite the journey! 
The goal is to use solar energy to heat the boiler during the day so that it doesn’t kick in during the evening when we shower. I’ve set up the boiler to read values from Node-RED, which allows me to monitor and control the system in real time. However, I’m still figuring out how to create an efficient schedule that maximizes solar usage without overworking the boiler.
One challenge I’ve encountered is understanding which pumps or entities are responsible for initiating the heating process. Without this knowledge, it’s difficult to design a flow that automatically switches to solar heating when enough energy has been stored. I’ve reached out to the community for advice, and I’m hoping someone has experience with similar setups.
In the meantime, I’ve been experimenting with different configurations and logging data to see how the boiler behaves under various conditions. It’s been a bit trial and error, but I’m optimistic that with some tweaking, I can achieve a system that’s both energy-efficient and user-friendly. If anyone has tips or resources on optimizing boiler schedules with solar integration, I’d love to hear them! 