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Indonesia has quite large wind energy resources spread across various regions, so it has the potential to be developed into PLTB. Energy needs in Indonesia continue to increase and the government is committed to utilizing new, renewable energy to achieve emission reduction targets. However, efforts to utilize wind energy are still not optimal due to several reasons, especially research and research capabilities related to PLTB. The blade is the main component in the wind turbine system and is the system that first receives the wind and then converts it into mechanical energy. This research aims to determine the performance and manufacture tapperless type wind turbine blades with NREL's S822 airfoil using Qblade and Solidworks software. The design and simulation results show that the resulting blade has a blade radius of 1 meter, a blade or chord width of 0.12 m. The twist angle from the base to the tip of the blade ranges from 11.69º to 5.05º and a power of 500 W is obtained at a rotational speed of 262 rpm.

Conventional power plants that exist today can cause environmental damage, such as air pollution and the erosion of fossil reserves. Therefore, humans continue to innovate to develop environmentally friendly power plants. One of them is the combined wind turbine and solar cell technology to create a more effective solution called a Hybrid power plant. This research proposes a VAWT Helix Turbine Design for Microhybrid Power Plant. The design is according to the wind speed and solar radiation for the Madiun city area. BMKG data shows that the average wind speed is 3 m/s to 7 m/s. Meanwhile, the sun's heat is on average 25°C to 36°C. The wind turbine uses 3 blades of helix type and the solar cell used is Monocrystalline. The design was designed using the AutoCAD program and simulated using Qblade software. The blades are made using 3D Printing Polylactic Acid (PLA) and then printed using a 3D Printer. Simulation results using Qblade show the average value when the wind speed is 3 m/s produces an average power within 11.4 Watt. When the wind speed is 4 m/s, the average power is 33.7 Watt. When the wind speed of 5 m/s produces an average power of 80.2 watts.