@sheriff-fatman You're absolutely right that there is currently no solution on the market that orchestrates heat pump + battery + solar PV + EV together. 

The 2 modes within Havenwise that I described earlier provide a good intermediate solution, but we won't stop there and further integrations are on the roadmap!  

Posted by: @sheriff-fatman

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Is the Havenwise solution capable of identifying when the heat pump will be running from stored battery power, rather than the grid, during the peak hours, as the effective cost of generation of these is different at any point in time?

Ah... I can see the problem you're identifying.

You could first check how big the issue is by temporarily putting some cheap (Chinese) energy monitors onto the grid connections to your battery-inverter and your heat-pump.

Here's a typical 2-channel energy meter on Amazon.
You can buy a lot cheaper via AliExpress, who also have a wider range of suitable products.

However, may I turn the question around...?

What about running the heat-pump solely from the storage battery?
That reduces the complexity of the issue.
You then only need to decide when to recharge the battery from the grid.

Posted by: @transparent

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However, may I turn the question around...?

What about running the heat-pump solely from the storage battery?
That reduces the complexity of the issue.
You then only need to decide when to recharge the battery from the grid.

It's not a controllable option in the winter months with our current battery storage.  At some point in the day, the battery charge will be exhausted, and the heat pump will make the timing of that more variable.

It's not an issue in the summer months currently, and I doubt that the additional heat pump usage will impact that.

Longer-term the solution will be to add more battery capacity, which removes the issue, but we don't have that luxury yet.

Posted by: @sheriff-fatman

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At some point in the day, the battery charge will be exhausted, and the heat pump will make the timing of that more variable.

To some extent...
... but the energy required by a heat pump is steady and predictable.

Your longer-term solution of adding more battery capacity is of greater interest to me.

Feel free to start a new Topic to discuss that.

Start by

• giving us an overview of youir current inverter & battery arrangement
• tag me so I receive an alert that you've posted this
• a photo is useful

@sheriff-fatman Exactly this is why a lot of our users with a battery choose to do the following: 

• In the shoulder months: The battery and solar PV generation are sufficient to cover the household and heat pump consumption through the day. Havenwise "ignores" the tariff for heating and the heat pump draws from solar PV when the panels are generating, or the grid during cheap periods, or the battery outside of these periods. Result: all electricity consumption is coming from solar PV or from the grid during cheap moments, and the heat pump runs at maximum efficiency. 
• In winter: Obviously the heat demand is larger, and solar PV production is lower. So very often, the battery capacity is insufficient to supply the household and heat pump consumption through the day. So Havenwise shifts a part of the heat pump consumption to the cheap periods of the tariff, and the heat pump needs to consume less electricity outside of the cheap periods. Result: the battery capacity lasts longer through the day, and grid consumption for the house or the heat pump outside of the cheap periods is minimised. 

This is just a switch for Havenwise. There is no need to adjust heat pump schedules or anything else for the user. And the user can choose when is the right time for them to switch between the 2 modes.

@sheriff-fatman : I know you already know this, so I'm describing this for the benefit of other readers.