Put some solar panels on your roof, run wire to home. There, you have transported your power.
Bigger issue is winter time energy, aka heating. That one will be hard with current tech (storing energy for once per year use), though solar is getting cheap enough you may be able to use use solar generated electricity to heat -- you would need overcapacity of panels in northern climates -- but that's probably cheaper than moving the world's coastal cities.
Spot on. In Canada I visited a building that was being constructed as an experimental home using very thick walls (12", R35 or thereabouts) using several vertical chambers and reflective mylar for insulation and a solar trap. Mid winter, -20 outside, the house had not been heated at all and a bucket of water was left in one of the rooms, it had not frozen. Body heat would be enough to get it to 10 Celsius or so, solar would easily do the rest.
Bigger issue is winter time energy, aka heating. That one will be hard with current tech (storing energy for once per year use), though solar is getting cheap enough you may be able to use use solar generated electricity to heat -- you would need overcapacity of panels in northern climates -- but that's probably cheaper than moving the world's coastal cities.