I honestly doubt that 100% of Swiss pellets came from Swiss... It would be FAR more expensive and if in Swiss pellets are common like in France or Italy... Swis

I honestly doubt that 100% of Swiss pellets came from Swiss... It would be FAR more expensive and if in Swiss pellets are common like in France or Italy... Swiss pellets production will erase forests in a decade. Beside that pellets in general is not sustainable due to the usage scale: wood is renewable BUT at a certain rate. If we all heat with pellets the usage rate is simply too high. Solar + heat pumps is nice IF you do not need much heat AND you have enough sunlight AND a veeery big hot water storage: I'm actually evaluating this for my home, witch is new "Minergie/A class" kind, with a small p.v. plant, with potentially enough room for insulated storage in sufficient quantity and well... I need at least 3000l of water, 10kWp solar to pass a single SUNNY winter day 100% on local energy for heating (witch means not counting water circulatory pumps etc). It's potentially feasible on scale, but IF and only IF we re-build all homes, annihilating condominiums, limiting the change to Europe south/center. Oh and heat pumps compressors does not last more than 10 years in general... It's not just a matter of costs, it's also a matter of scale.