by pup55 » Tue 01 Feb 2005, 12:13:11
The gas reserves per the model above are currently 178.15 tcm. This value makes the curve fit best. The peak date and URR for gas of 262 tcm are from Campbell. The BP energy review estimates current reserves of 175.15 tcm, so I am not ready to say this is too far off.
For coal, the value in the model for current reserves above is 613488 mt, which also makes the model fit best. The BP energy review value is 984,453 mt.
The curve below is adjusted to give a current reserve value of 1,115,000 mt which is closer and does a little better with the current productioin which is 5100 mt/yr, and gives the same peak. I don't know too much about coal. Unlike for oil, the curve is so flat it is hard to model.
If you have a better source of data no problem to make a new curve.
$this->bbcode_second_pass_code('', 'Year
2004 5,177.41
2005 5,183.66
2006 5,189.64
2007 5,195.35
2008 5,200.77
2009 5,205.92
2010 5,210.79
2011 5,215.38
2012 5,219.68
2013 5,223.70
2014 5,227.44
2015 5,230.90
2016 5,234.07
2017 5,236.95
2018 5,239.55
2019 5,241.86
2020 5,243.88
2021 5,245.61
2022 5,247.06
2023 5,248.22
2024 5,249.08
2025 5,249.66
2026 5,249.95
2027 5,249.95
2028 5,249.66
2029 5,249.08
2030 5,248.22
2031 5,247.06
2032 5,245.61
2033 5,243.88
2034 5,241.86
2035 5,239.55
2036 5,236.95
2037 5,234.07
2038 5,230.90
2039 5,227.44
2040 5,223.70
2041 5,219.68
2042 5,215.38
2043 5,210.79
2044 5,205.92
2045 5,200.77
2046 5,195.35
2047 5,189.64
2048 5,183.66
2049 5,177.41
2050 5,170.88
2051 5,164.08
2052 5,157.01
2053 5,149.67
2054 5,142.06
2055 5,134.19
2056 5,126.05
2057 5,117.65
2058 5,108.99
2059 5,100.06
2060 5,090.89
2061 5,081.45
2062 5,071.77
2063 5,061.83
2064 5,051.65
2065 5,041.21
2066 5,030.54
2067 5,019.62
2068 5,008.45
2069 4,997.06
2070 4,985.42
2071 4,973.56
2072 4,961.46
2073 4,949.13
2074 4,936.58
2075 4,923.80
2076 4,910.81
2077 4,897.59
2078 4,884.16
2079 4,870.52
2080 4,856.66
2081 4,842.60
2082 4,828.34
2083 4,813.87
2084 4,799.20
2085 4,784.34
2086 4,769.28
2087 4,754.03
2088 4,738.59
2089 4,722.97
2090 4,707.17
2091 4,691.19
2092 4,675.03
2093 4,658.70
2094 4,642.20
2095 4,625.53
2096 4,608.70
2097 4,591.71
2098 4,574.56
2099 4,557.25 ')