This paper describes the performance and emission characteristics of a micro cogeneration system based on a single cylinder diesel engine. In this cogeneration system, in addition to the electricity generated from the genset, waste heat from hot exhaust gas of diesel engine was used to drive a combination of four units of Electrolux vapor absorption (VA) system for space cooling. The capacity and heat input of each unit of VA system was 511 and 95W respectively. A cabin of 900 mm width, 1500 mm length and 1800 mm height made of ply wood was fabricated as a space for air conditioning. A temperature drop of 5 degrees C was obtained in cabin at full engine load about 6 h after system start up. The reduction of CO2 emission in kg per kWh of useful energy output was 19.49% compared to that of single generation (power generation only) at full load. The decrease in specific fuel consumption in case of cogeneration compared to that in single generation was 2.95% at full load. The test reults show that micro capacity (3.7 kW) stationary single cylinder diesel engine can be successfully modified to simultaneously produce power and space cooling. (C) 2014 Elsevier Ltd. All rights reserved.