A new report says cash-strapped Pakistan should pursue clean energy instead of relying on coal and nuclear. : Cash-strapped Pakistan should pursue clean energy instead of relying on coal, nuclear and hydroelectric power, according to a report released Wednesday urging the country's policymakers to rethink plans for building more coal-fired plants. The Institute for Energy Economics and Financial Analysis said coal-fired power, one of the central pillars of Pakistan's energy deals with China, is a costlier and dirtier alternative to wind or solar energy, which China is also supplying but to a lesser degree.