Solar must destroy the Earth to save the Earth?
No , only half a million kilometers of desert is needed to cover current and future energy needs of the whole planet up to 2030.
Land Art Generator Initiative
Come on.... Are you bonkers?
That entire site is a joke. You want me to detail how crazy that is, line by line?
A household can cover most of its energy needs with 60 m2 of solar panels ( 2 electric cars, + house appliances ).
No desert has to be destroyed. The problem are the batteries : they pollute a lot and they are very inefficient.
I guess I'll have to wait until we have graphene batteries.
60 m² of solar panels? One panel is 1.6 m². 60 / 1.6 = 38 panels.
38 Panels would cost $10.6 Thousand dollars. That does not include power inverter, or batteries, or the charger controller or any wiring, nor housing for equipment, or surge protections, or breakers and disconnects. That can easily add up to another $10 Thousand.
So $20K. I spend about $40 a month on electricity. In 40 years, I'll break even. Perhaps I use little electricity. Let's say $80 a month. That's 20 years to break even. Let's say the government subsidizes the big solar companies, to the tune of 50%. That's 10 years, to break even.
Fail?
So would 60 m² be able to supply all the power I would need? On average... yes. The average household uses 30 kWh a day. 38 panels are rated to provide 200 watts, per panel, at 7.6 kW, assuming about 4 hours of light a day, would be 30 kWh.
The problem is, "rated" power is not the same as practical power. Calculating out how much power you'll get from 'rated' power, is a joke. Rated power is under the most ideal circumstances.
For example... Angle of the panels to the sun. As we all know, ideally the panels should always face directly at the sun. Which almost never happens when you mount them on your roof. That alone eliminates that ideal rated power from ever happening.
What about dust and leaves? My parents house for example has 3 very large trees, that shade most of their yard and roof.
In dusty areas of the country, that dust can kill off 5% to 10% of the power generation.
Here in Ohio, we have white fluffy stuff called snow. You expect everyone to climb on their roof all winter long and clear off the snow?
Then you have losses from wiring. Larger array, more power loss to wiring and inversion. You also have power mismatch losses. Differences in power output per panel, cause and overall loss in production. Larger array, more loss.
So clearly we need significantly more solar panels than the 38 minimum. Yet even then, we still have a problem, because over time, panels lose their power generation. There is a significant 1.5% to 2% loss the first month. Then after that, about 1% power loss per year. In just 8 years, the total power generation will be down 10%.
Pretty soon, you'll be running out of power.
Of course all of this ignores the fact that many... if not most homes, wouldn't have the space for 38 solar panels anyway. My parents home, nor my own, would have enough space for that.
So back to the question: So would 60 m² be able to supply all the power I would need?
Theoretically, in the most ideal situation, yes. In practical reality, not even close.