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ottopaulsen / node-red-contrib-power-saver

A Node-RED node to saver money by turning off when the power is most expensive
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Suggestion: Strategy Best Save - off/normal/boost #98

Open Vantive1 opened 1 year ago

Vantive1 commented 1 year ago

Hi!

Here is a suggestion I would find useful: It would be useful to detect "a number of low price hours before the point in time where the price rises sharply" (often in the morning) to be able to boost the heating system and accumulate energy at a low cost. Then the heating system can divest the accumulated energy during the coming expensive hours.

It's the same idea as best save strategy but on the other, positive, price edge.

Thanks!

/Magnus

andersmoldin commented 1 year ago

I believe you should take a look at the heat capacitor strategy.

Vantive1 commented 1 year ago

Thanks, I see what you mean, but what I am suggesting is mapping better towards the more aggressive switching pattern in Best Save.

The Heat Capacitor strategy is changing the temperature set point s few degrees up or down depending on price, in a more smooth way. Best Save is on/off strategy, e.g. more aggressive. "On" is often working towards a set point and to be regarded as the normal working state. "Off" is completely shut off, and regarded as a time limited state that cannot last forever.

My suggestion is to expand the functionality of Best Save to also have an aggressive "boost" to be regarded as the opposite of "Off". "Boost" would be a state where the heating system over consumes energy and also to be regarded as a time limited state that cannot last forever.

Some heating systems have binary input for off/normal/boost and expanding the functionality of Best Save would match that use case, which is different from changing the set point a few degrees up or down. Don't know if I was able to make it clearer... :)

ottopaulsen commented 1 year ago

Sounds like a good idea, @Vantive1 . I will keep it in mind.