TABLE 8.2.  Emergy Analysis of Solar Voltaic Power Installation in Austin Texas.  Annual Contributions and Requirements  (from Environmental Accounting, Howard T. Odum, c1996)
Note Item Data and Units (J, g or $) Solar Transformity (sej/unit) Solar Emergy (x10^15 sej/yr) Em$ ($/yr*)
1 Solar energy 2.67 x 10^7 kWh 1 0.096 60
2 Design installation 1.94 x 10^4 $ 2.8 x 10^12 54.30 27,160
3 Materials cost 1.63 x 10^4 $ 2.8 x 10^12 45.60 22,820
4 Collector cost 5.68 x 10^4 $ 2.8 x 10^12 159.00 79,520
5 Administrative cost 1.2 x 10^5 $ 2.8 x 10^12 336.00 168,000
6 Operation and maintenance 4.0 x 10^4 $ 2.8 x 10^12 112.00 56,000
7 Concrete 2.23 x 10^3 lb 1.5 x 10^13 33.40 16,725
8 Structural steel 1.16 x 10^4 lb 4.16 x 10^11 4.80 2,413
9 Steel building 1.47 x 10^2 lb 4.16 x 10^11 0.06 30
10 Rebar 7.8 x 10^3 lb 4.16 x 10^11 3.24 1,622
11 Copper wire 26.7 lb 4.49 x 10^13 1.20 600
12 Total from economy (items 2-11) 749.70 374,951
13 Electric power output 1.8 x 10^12 J 2.0 x 10^5 360 180,000
Emergy yield ratio: 360 x 10^15 sej/yr  /  749.7 x 10^15 sej/yr = 0.48
Emergy investment ratio: 749.7 x10^15 sej/yr   /  0.096 x 10^15 sej/yr = 7809
* Solar Emergy in column 5 divided by 1.6 x 10^12 sej/1991$.
1-12  Based on an interview with the site engineer for the city of Austin
1  (2.67 x 10^7 kWh/yr)(3.6 x 10^6 J/kWh) = 9.61x10^13 J/yr
13  (5.0x10^5 kWh/yr)(3.6 x 10^6 J/kWh) = 1.8 x 10^12 J/yr
Source: R. King, personal communications, 1991.  Data from King and Schmandt (1991).
These calculations are based on our present "shop-till-you-drop" theory of salvation.  If we had adopted a fundamentally different value system (e.g., Amish), then it is possible that PV could reproduce itself.  However, there is no reason to expect people to become more "rational" during the coming energy crisis. Indeed, I expect people to become even more irrational and violent.  See A MEANS OF CONTROL at http://dieoff.com/page185.htm