What about n.stores.carrier == "Li ion"?

There are too many confusingly labeled battery carriers in the model:

• battery -> i think for utilitiy scale batteries
• home battery -> home batteries
• Li ion -> so far i assumed these are the batteries in the BEVs and should be scaled with the factor from aladin
• battery storage -> supposedly also for demand side management of BEVs, i saw it in the code, but it does not turn up in the postnetworks, no idea why it is missing

I talked to Lisa about this. It's a bug in PyPSA that has been fixed about a month ago. Apparently the optimisation changed the carrier of stores to match the carrier of the bus to which it connects.

So this PR is probably correct, but i have to update my PyPSA version. Addtionally i will prepare a PR for pypsa-eur which renames the carriers