by MonteQuest » Sun 13 Jul 2008, 14:41:33
$this->bbcode_second_pass_quote('Nicholai', ' ') I'd like to know MATHEMATICALLY why we do not have time to ramp up renewable production enough to counter the rate of global depletion in order to avoid major supply shortages.
See my thread on it.
Energy sources such as wind, solar and biofuels are fast expanding their reach in the market. Can they grow fast enough, given their current miniscule contribution, to fill the gap of oil decline? Over the past 10 years, the installed capacity of solar energy has increased by 700%, while wind energy capacity has expanded more than thirteen-fold. That translates to 10-year annual growth rates of nearly 22% and 30%, respectively, which far exceed the single digit growth rates of many current energy economies.
During the same period, they cite other renewable energy technologies grew rapidly as well:
• wind power: 28 percent
• biodiesel: 25 percent
• solar hot water/heating: 17 percent
• off-grid solar PV: 17 percent
• geothermal heat capacity: 13 percent
• ethanol: 11 percent
However, even with these massive growth rates, renewable energy sources such as wind, solar, geo thermal and biofuels contribute just 2% of our primary energy with wind/solar less than 1%. An almost inconsequential contribution, given the twilight of the oil age on the near horizon.
Peakoil and the Growth of Renewable Energy$this->bbcode_second_pass_quote('', 'A')gain, we can't predict what the rate of global oil supply depletion will be, but is it possible to assume 8% beginning in 2010, followed by an increase of 10%, 13%, 17% etc. for the years to follow?
The decline rate of existing fields is 5.2% up from 4% last year. To assume any specific decline rate is pure speculation, but I would hazard that it will be higher than 5.2% as we resort to EOR techniques for extraction far in excess of what we have done previously.
Why? Because, in the past when production declined in one area, we went to another for supply. Classic case is the USA. Would our historical decline rate be 2%, if we had not started to import oil?
Where do you get these escalating decline rates of 10%, 13%. 17% ???
$this->bbcode_second_pass_quote('', 'H')ow can we assume that these alternative technologies can continue to outpace depletion far into the future?