energy production, at least to the end of the century, will have to rely on the more conventional energy sources, in particular hydrocarbons. 27. For the purpose of estimating investment resuirements, the production of different energy sources to the year 2000 has been projected for the energy-surplus and the energy-deficient developing countries (E/L983/9L and Corr,l' chap. II). fn the ease of the energy-surplus countries, the projected oil production in the vear 2000 is 40 mbd, which is the sum of the proiected oPEc production of 25.7 mbd and the projected output of non-OPEC developing countries of 13 to 14 mbd. fn view of the substantial prospects for further developnent of natural gas in these countries and the significant reduction of flared gas, it is projected that natural gas production could reacb 8 nbdoe by the year 2000. with regar<i to coal, it is projected that production in the energy-surplus countries urill increase at an annual rate of 3 per cent to 878 million tons in the year 2000. HydropowerA/40/sLt English ' Page 11 capacity in these countries is projected to increase about threefold to 108 gigawatts (Gn) in that year. Aggregate geothernal capacity in these countries is expected to grow from about I50 MW in 1980 to 1.5 to 2.0 GW at the end of the century. 28. In the energy-deficient developing countries, oil production is projected to grow at an annual rate of 7.2 pet cent to 5.1 nbd in the year 2000. Given the substantial prospects indicated by recent discoveries, it is projected that natural gas production will grow at an average annual rate of 9 per cent to 2-8 mbdoe by the end of the century. Coal production is projecte<l to grori, more than fourfold to 6.4 mffioe and hydropower capacity to increase at an annual rate of about
**Analysis**
The text discusses projections for energy production and consumption in developing countries until the end of the century. It focuses on different energy sources such as hydrocarbons, natural gas, coal, and hydropower, which suggests that the category should be related to the energy sector. The text also mentions the distinction between energy-surplus and energy-deficient countries, which implies that the category should be related to international development or economic development.

**Category**
Natural resources and environment, Economic development