Who really cares about density? The biggest thing that means is that blowing up two or three substations can cripple an entire country’s grid. Distributed energy generation and storage is actually quite strategic for national security.
It’s also massive cherry-picking to just look at refined fuel. For example, H
how many tonnes of ore do you need to mine and process to produce that 1kg of uranium (at least 2.5 tonnes, that is 2500 kg from one random source from a quick google).
But to use your metric, I did work out and find it interesting that the solar panels on my roof, per kg of silicon have produced over 1,400 kWh of electricity (multiply your figures by 0.3 to take into account efficiency from kWh of heat to compare) so far. I estimate almost 28 kg of silicon in my whole array, which has generated over 38 MWh so far, and I expect they will generate at least three times that over their life.
So 4000-5000 kWh(e) per kg of silicon sure comes in a hell of a lot of better than the 2.4 odd for coal or 4 for mineral oil (assuming your figures are correct).
Everyone. If you don’t, then you need to scale. Case in point with renewables. It’s also not cherry-picking, but a well-known fact in physics. Do yourself a favor and look at the source link I posted above.
The thing about blowing up things I will just skip, because it’s not serious. If things go that far, there will be far greater problems than just that. Besides, if that’s your worry why don’t use SMRs then? Russia does.
To your 4000-5000 kWh point, you are not burning silicon here, are you? And a PV is not energy fuel, it’s a device composed of many different materials. I don’t understand your point and I can’t say more than that - my reply to GP was about fossil fuels and nuclear anyway. Not sure why you decided to jump into renewables here.
It’s also massive cherry-picking to just look at refined fuel. For example, H how many tonnes of ore do you need to mine and process to produce that 1kg of uranium (at least 2.5 tonnes, that is 2500 kg from one random source from a quick google).
But to use your metric, I did work out and find it interesting that the solar panels on my roof, per kg of silicon have produced over 1,400 kWh of electricity (multiply your figures by 0.3 to take into account efficiency from kWh of heat to compare) so far. I estimate almost 28 kg of silicon in my whole array, which has generated over 38 MWh so far, and I expect they will generate at least three times that over their life.
So 4000-5000 kWh(e) per kg of silicon sure comes in a hell of a lot of better than the 2.4 odd for coal or 4 for mineral oil (assuming your figures are correct).