Comment by boredpudding

It's possible to store energy for full seasons, just not electricity.

It's been done with heat. Using cheap electricity in the summer to generate heat and store it in basalt. There's a small block of houses in The Netherlands that gets their heat that way: https://www.ecodorpboekel.nl/basaltaccu-is-opgebouwd-uit-duu...

There's more systems like this around the world, although they use different storage methods.