국내외에서 사용하고 있는 ‘에너지 산업연관표’는 제품 생산에 연료로 사용되는 부분과 원료로 사용되는 부분을 명확하게 구분하지 못하는 단점이 있다. 따라서 이를 이용한 산업별 화석에너지 소비량, 나아가 온실가스 배출량 추정에는 상당한 한계가 있다.
본 논문에서는 이러한 한계를 개선하기 위한 대안으로 먼저 화석에너지 소비량 가운데 원료로 투입된 부분을 제외하고, 둘째 세금이 제거된 기초가격거래표를 사용하여 우리나라 ‘2005년 화석에너지 산업연관표’를 작성하였다. 원료 등으로 투입된 화석에너지를 연료 소비량에서 제외하는 개선된 방법과 그렇지 않은 기존 방법과의 차이를 비교해 보면, 석유석탄 산업에서는 3.8배 가량 차이가 났고 비금속, 전기·가스·수도업 등에서도 상당한 차이를 보였다.Whether domestic or foreign, 'Energy Input-Output Table' prepared and used currently has a limitation of having not eliminated the portion of primary energy used as materials, so called embodied energy. If embodied energy is not eliminated, energy consumption by industry will appear to be excessively bigger or smaller than the actual consumption.
In this study, we have presented an alternative solution to overcome such a limitation and constructed '2005 Fossil Energy Input-Output Table' of Korea. We have also analyzed fossil energy consuming structure of Korean industries from the table.
When we compared the improved method of eliminating fossil energy used as materials from fuel consumption to the conventional methods, it showed a difference of about 3.8 times in petroleum/coal industry and also showed considerable differences in non-metal, electricity/gas/water service industry and so on.
Meanwhile, when we calculated the intensity of fossil energy using 'Energy Input-Output Table' prepared by the improved method, it appeared that 5.6 TOE of fossil energy on average has been consumed to produce products or service worth 100 million KRW in 2005 in Korea. By industry, 78.5 TOE was consumed to produce 100 million KRW in electricity/gas/water service industries which include thermal power generation and 24.5 TOE was consumed for transport/storage industry.
And the result of analyzing direct and indirect energy consumption through inter-industry analysis showed that, while the industries of cement and electric power industries mostly use energy directly, those of construction, automobile and machinery industries usually use energy indirectly.