Depends. Most of the time Wase (is separate umgoogled sandbox). The data on police patrols is unbeaten. But the privacy downside it's obvious (it's owned by Google). Sometimes OsmAnd~ when I need to be not-watched / offline or when I am in the urban/remote areas where knowing detailed cartographic data is more important then traffic/police warnings.
@Hynek btw this is interesting topic. Distribution grid is an good example of extremely centralized system. The bigger it is, the harder it is to maintain. But thanks to it, we can buy and sell electricity to whole Europe.
I would love to see the decentralized grid, but I think this may be really expensive-innefective to achieve.
I know that thermal efficiency of gas turbines/engines is something like ~30%.
Also they probably produce 230V AC, converting it to battery (~50DC) would add 10% loss for every conversion. This is good to keep in mind, but it's not directly affecting the comparsion. Because yes, fossils have higher energy density then any batteries we have.