Earth Area Required for a Solar Economy
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- http://landartgenerator.org/pdf/PosterSolar.pdf
- Cost would be $3-5 trillion, or a fraction of global GDP. [1]
- Then to summarize, WTF is this not happening by next year?
- Only 150 GW of panels are produced per year [2]
- Average consumption is 350W per person for 8 billion people. [3]. This means 3 TW needed. But need to multiply by 4 as sun shines 6 hours on average on any place, World. So say it's about 10TW need.
- This means one decade gets us 1.5TW - need a few decades. But this is accelerating.
- OSE proposal - entrepreneurs get involved in PV module production en masse.
- Startup cost of PV manufacturing facility - couple million. See [4] - full breakdown. Initial capitalizatin appears to be spread out over an undefined period. Looks like facility would be somewhere around $2M in equipment? See example of laminator and facility. [5]. 5MW per year is typical, for about 40kW actual power use on laminator. 5MW = 250W*(20,000). 20k panels - or enough for 100 facilities of 50kW each. In this model, the cost is 43 cents per watt, sale price is 64 cents per watt. This is in 2014, so it's a generation ago. Price of solar cells has been dropping - down to around 20 cents per watt for solar cells only [6].