You should bike more, it would improve your health. In first world countries, people use mostly the good infrastructure of bikes and public means of transport, but as you live in one, you definitely know it and use public transport.

There are other means of storage, beside batteries, but you probably know this, and also other means of cleaner energy, beside sun, which are more efficient.

Like said, try a bike for the 20 miles you ride a day, as this is easily done in Europe for most people.