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When I built my system the greenhouse gasses released during manufacturing and transport were offset by 1.9 years worth of production. Out of a lifetime of 20-2
by jnsaff2 4y ago
When I built my system the greenhouse gasses released during manufacturing and transport were offset by 1.9 years worth of production. Out of a lifetime of 20-25 years. In my quite unfavorable latitude of 59. Since then I've seen data being quoted at somewhere between half and one year.
- adastra22 4y agoThose numbers seem low. I don’t doubt that’s what was quoted, but I don’t think they were fairly calculated. For example, a lot of times the greenhouse gases used in refining materials used to make panels are not included, on the assumption that they will be recycled. Turns out recycling is not economically worthwhile (mostly because of these externalized costs). But that’s most of the greenhouse gas emissions: turning silicon dioxide into pure silicon using coal. Regardless it’s apples to oranges. You are comparing your solar output to the mix of fossil fuel power the grid supplies. But a small modular reactor would be a carbon-zero power source.
- jnsaff2 4y agoI don’t get why there is polarization between solar/wind and nuclear? I can’t put an SMR in my basement but I can put solar on the roof. Why not? It’s not even likely that my country will get an SMR. Nuclear is also a very risky business (not in the sense of safety but in the sense of project delivery/nimby). So solar and wind are derisking weaning off fossil fuels.