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IRIS Under Pressure to Grow
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ENERGY, CAPITAL, AND LABOR REQUIREMENTS
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The EROI of agriculture
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Fire Protection Systems
Higher Fuel Costs, Lower Profits
Higher costs are attributed to higher usage of fuel, labour, sophisticated technology and computers.Moreover, fuel cost increased by 44 percent between 1999 and 2000.
|
Estimate Fuel Costs
|
||||||
| Year |
1996
|
1997
|
1998
|
1999
|
2000
|
2009
|
| $ million |
$79
|
$97
|
$98
|
$110
|
$159
|
$303
|
USDA estimates show that a single greenhouse can produce more than 189 tons of CO2 per year.
The IRIS Solar System produces zero CO2 from fuel consumption.

