经济发展速度大多数对于未来能源需求的估算都把世界经济的年增长率定为百分之三。在这个基础上,1980到2000年间基本能源需求的增长幅度,看来将为百分之三十到五十,或者会更大一些。另一个重要因素是取决于石油价格的能源价格。有一项具有代表性的估算指出:从剔除了通货膨胀这一财政因素后看,从1977～2000年,能源的价格大体上要增加一倍。 Most of the economic growth rate estimates for future energy needs set the annual growth rate of the world economy at 3%. On this basis, the growth of basic energy demand from 1980 to 2000 appears to be 30% to 50% or even more. Another important factor is the price of energy, which depends on the price of oil. A representative estimate shows that after excluding the fiscal factor of inflation, energy prices have roughly doubled from 1977 to 2000.