18V Micro Hydroelectric Generator, 2A, 36W/50W

● 18V micro hydro generator with power 36W or 50W for sale. 4m high water pipes/streams are possible. ● Impact hydroelectric principle with high conversion efficiency. Supports charging 12V, 24V batteries. ● Efficient wheel design for durability. Ensures a flow rate of 0.3 m³/s, ideal for small-scale hydroelectric generation. ● Pollution-free, suitable for remote and DIY renewable energy projects.
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The micro hydroelectric generator is an innovative solution for off-grid power generation, ideal for camping, domestic use, or anyone needing a reliable energy source from stream water. With a no-load voltage of 18V and an operational load current of 2A, this generator is both versatile and efficient. Capable of delivering a power output 36W and 50W, it can operate at dual voltage levels of 12V or 24V, catering to different power requirements. It’s designed to work optimally with a water head of 5.5 meters and a flow rate of 0.3 cubic meters per second, making it suitable for small streams or rivers. Compact in design, with dimensions of 168mm x 98mm x 151mm, this micro hydroelectric generator is easy to transport and install, providing a sustainable and eco-friendly power source for use in remote locations or for any household looking to harness the power of flowing water.

18V micro hydroelectric generator feature


  • A hydroelectric small system that is portable and adaptable to off-grid living and camping.
  • Uninterrupted charging is achieved regardless of the weather, ensuring continuous use of the power supply
  • This small hydroelectric generator is used with our proprietary controller for app remote control
  • Clean energy source, usable in small streams and available at low heads.


  1. Water Inlet: This inlet is optimized to ensure the maximum kinetic energy transfer from the water to the generator, facilitating effective power generation.
  2. Waterwheel: This waterwheel is meticulously designed to capture and utilize the kinetic energy of the water, converting it into mechanical energy that drives the generator to produce electricity.
  3. Rotating LEDs: The generator includes rotating LEDs that serve as indicators of its operational status. 
  4. Power Output: Suitable for small-scale applications or as a supplemental power source.
Micro hydroelectric generator detail

Micro Hydroelectric Generator Dimension (Unit: mm)

Micro hydroelectric generator size

Micro Hydroelectric Generator Wiring Diagram


Micro hydroelectric generator connection diagram

Note: Not to be immersed in water.

Recommended Matching Controller PH-SCC
DC No Load Voltage 18V
DC Load Current 2A
Power 36W/50W
Rechargeable Battery Voltage 12V/24V
Design Water Head 5.5m
Design Flow Rate 0.3m3/s
Machine Size 168*98*151mm
Weight 1kg

PDF computingWater Generator User Manual

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Q1. How water turbine works to produce electricity?

A water turbine generates electricity by harnessing the kinetic and potential energy of flowing water. Water stored at a higher elevation flows down through pipes or channels, gaining speed and kinetic energy. When this fast-moving water hits the turbine blades, it transfers its energy to the turbine, causing it to spin. The design of these blades is critical in efficiently converting the water's energy into mechanical energy. As the turbine spins, it drives a generator connected to it, converting the mechanical energy into electrical energy, which can then be distributed for use.

Q2. Hydroelectric generators have several advantages and disadvantages

Hydroelectric generators offer significant advantages, such as being a renewable and clean energy source with low operating costs and high efficiency, and they can provide a reliable power supply due to their storage capability. However, they also come with disadvantages, including high initial construction costs, potential environmental impacts like ecosystem disruption and community displacement, geographical limitations requiring specific site conditions, vulnerability to droughts affecting power generation, and issues with sedimentation and erosion that can reduce efficiency over time.

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Louis | 5/7/2024 9:37 AM
Great hydroelectric generator
Got this 18 v one and a 36 v one. Measured it with a multimeter and the volts were as described. I mounted it to the pump on the fish outline then a 12v LED light so I don't have to connect a separate power supply, very convenient.