Comment on Modeling shows green roofs can cool cities and save energy
Fermion@mander.xyz 4 months agoWe need the world to be a better place more than we need the economy to have maximum efficiency.
I agree.
Comment on Modeling shows green roofs can cool cities and save energy
Fermion@mander.xyz 4 months agoWe need the world to be a better place more than we need the economy to have maximum efficiency.
I agree.
BearOfaTime@lemm.ee 4 months ago
You’re both ignoring the full costs of maintenance.
And by costs, I mean more than dollars.
What’s the energy cost of the folks who maintain these things? The materiel and it’s energy cost? Tools/equipment that wouldn’t otherwise be required?
It’s surprisingly far more complex than just reduced AC expenditure. Are we sure that all the inputs over the life cycle have been accounted for?
It’s rare for a new system (of any type, in any industry) to actually reduce costs (again, all costs, not just money), let alone to the degree they’re purported. Typically we see incremental improvements, and usually a loss in some unpredicted way.
Good analysis is difficult, even for simple systems.
Hopefully these ideas pan out, my suspicion is they’re effective for a narrow set of conditions.