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Until now, the price of non-solid fuels (oil and gas) has increased, there is a big opportunity for a shift towards the use of biomass fuels. Besides its unlimited availability, biomass is also a well-known fuel. For its use, of course, a device called a stove or stove is needed, which has been designed for biomass fuel. Even though Riau Province has an electrification ratio of 92.43%, out of 12 districts and cities in Riau, there are three more districts that have a low electrification ratio, namely Pelalawan Regency, an area with an electrification ratio of 52.75%, Indragiri Hilir (Inhil) was 69.01% and Rokan Hulu (Rohul) was 64.91%. In this research, the TEG module is used as a source of electricity generation. The working system of the TEG module is to convert heat energy or, more precisely, the difference in temperature directly into electrical energy. This research as a whole consists of the design stage, the development stage, the testing phase and the evaluation stage. The design stage aims to design a stove, the development stage aims at the stove production process, the testing stage aims to retrieve research data and the evaluation stage aims to analyze the results of the study. The results obtained from this study are the design and dimensions of the updraft type semi gasification biomass stove with a reactor diameter of 20 cm, a height of 30 cm, and the dimensions of the primary hole 12 cm x 9 cm and the secondary hole 0.1 cm of 54 holes arranged 18 holes horizontally. and 3 holes vertically. The rate of fuel demand is 3.27 kg / hour and the highest voltage output is 9.24 volts in the 55th minute with a temperature difference (ΔT) of 36.5 °C, while the highest current is 0.343 amperes in the 20th minute with a difference in temperature (ΔT) 28.75 °C. [ABSTRACT FROM AUTHOR]