Gasification is regarded as a basic process for advanced concepts of future coal conversion technologies. At present the process is widely used in chemical industry mainly for petrochemical by-products conversion but only occasionally for power generation as demonstration plants. Considering different options for clean energy production both directions are integrated to take advantage of synergy effect and so called "energyplexes" are analysed. They combine power generation with chemicals production, namely methanol, liquid fuels or hydrogen. Two main directions of coal conversion technologies were characterised and analysed in respect of thermal efficiency and investment cost. Subcritical coal combustion technology was chosen as a reference plant including two additional cases with carbon dioxide removal and oxygen blown combustion. Those were compared with three cases of gasification systems integrated with combined cycle power generation. Finally two different arrangements of gasification combined with methanol production and power generation were evaluated. It might be concluded that the latter cases open new opportunity for clean and carbon free energy production using coal at relatively high energy efficiency and chipper investment cost. Integrated carbo-energy and chemistry can be regarded as a environmentally sound option for coal based energy generation both for direct grid supplying and indirect dispersed sources feeding using methanol as a chemically clean fuel for fuel cells.