[iforgotpassword]

It indeed doesn't sound too bad this way, as long as we can realistically assume this is running 100% on renewables, ie not at night for solar. What's a bit unclear as of now is how much energy and thus possibly co2 emissions went into constructing this thing (material, transportation, etc.) and how long it will take to offset those. One or two years fine, ten years well, we'd have to see what the actual running costs other than electricity is. Should we throw in storage for our solar generated power so we can run it 24/7, we'd have to consider that too. I don't know what the current environmental footprint for lithium batteries is, but probably not negligible at that scale? I mean, I want to believe, I really worry about this, but this just sounds like feel-good project a bit too much.

[CHY872]

There’s just an economic bar where below that point, it’ll be what happens. Similar thing with solar and electric cars. Already cheaper to install solar than keep running coal. Give it a couple years and a government will be offering a rebate on cars only if the car can double as grid storage when parked.