Add ElectricityMaps Co2 forecast

[andig]

Depends on #5445. Using something similar to

tariffs:
  grid:
    type: electricitymaps
    uri: https://api-access.electricitymaps.com/<...>/
    token: <...>
    zone: de

the planner introduced in #5445 could plan for CO2 footprint instead of price for those users that don't have access to a flexible tariff. API keys can be obtained from https://api-portal.electricitymaps.com/.

TODO

• separate planning and cost tariffs

/cc @RTTTC @bsmout

[schenlap]

https://api-portal.electricitymaps.com/catalog
500 EUR/month, very expensive for this use case.

[andig]

Use the free plan ;)

[RTTTC]

Use the free plan ;)

It seems to be free for one month only?

[thorstenwagner]

I just saw that ElectrictyMaps uses data from ENTSO-E:
https://transparency.entsoe.eu/

You can get live data what is produced for every country.

But what is most important: I found a generation forecast for solar AND wind. I think this should be pretty much correlate how climate friendly charging is... that is exactly what we need?

Moreover, it seems they have a free API:
https://transparency.entsoe.eu/content/static_content/Static%20content/web%20api/Guide.html#_generation_domain

Here are instructions how to get a security token:
https://thesmartinsights.com/how-to-query-data-from-the-entso-e-transparency-platform-using-python/

I'm willing to help to get this working but need some advice what is necessary to do.

[RTTTC]

#5291
I think it's most important to integrate day-ahead prices.

[thorstenwagner]

Might be most relevant to save money. Personally, I don't have a dynamic tariff, so I would be most interested in charging with lowest CO2 footprint during the winter months. But I guess, as solar and wind are cheap co2-footprint probably correlates with energy prices?

[andig]

The ENTSO api is quite complex. Any idea which of the various reports delivers meaningful, actionable data?

[thorstenwagner]

For planning probably this and this ?

I mean, with this data you could already calculate the relative amount of renewable energy in the grid and define a threshold when to start charging?

[RTTTC]

But I guess, as solar and wind are cheap co2-footprint probably correlates with energy prices?

That is correct.
Plus - day ahead price is the only hard data, unlike generation forecast, it will materialise exactly like planned in the next 24h.

[andig]

I‘m not even convinced, that generation is relevant. It should be the mix consumption that matters rather than generation?

[thorstenwagner]

I would guess that mix generation and mix consumption should be pretty much the same?

[thorstenwagner]

Anyway, I agree that day ahead price is probably the best correlate for co2 friendly charging

[andig]

With this feature in place, we can still add additional "tariffs", including ENTSO.

[thorstenwagner]

Very cool! Looking forward to the next release. Will you provide documentation how to configure it?

Merry Christmas :-)

[andig]

See https://github.com/evcc-io/evcc/blob/master/evcc.dist.yaml#L161-L166

[RTTTC]

It is still not clear to me how to get a free non-trial plan for electricity..
I do not see such option on their web site.

Why not use free for personal use version instead? https://www.co2signal.com
EDIT - found the answer #5199 (comment)