Overview
The Pelton turbine is an impulse machine that extracts energy from high-velocity jets striking bucket-shaped runners. It is the reference choice for mountainous sites where the net head is high and the flow moderate.
TC HYDRO builds complete Pelton units — runner, nozzles with needles and deflectors, housing, main shaft and governor — each engineered to your measured site data, with spare parts available throughout the plant’s life.
Typical Applications
- Mountain rivers with 100–1000 m net head
- Rural electrification mini-hydro from 100 kW
- Grid-connected plants up to 100 MW
- Replacement runners & spares for existing Pelton plants
Technical Specifications
| Net head | 100–1000 m |
|---|---|
| Unit output | 100 kW–100 MW |
| Configuration | Vertical or horizontal, 1–6 jets |
| Flow regulation | Nozzle, needle & deflector |
Ranges are design envelopes — each unit is engineered to your measured net head and flow.
Scope of Supply — Complete Unit
- Runner
- Main shaft
- Bearings
- Speed governor
- Excitation system
- Inlet valves
- Control system (SCADA)
In-House Machining & Quality Control
Every runner, shaft and part is machined and inspected in our 30,000 m² Zhangjiajie factory — critical tolerances are never outsourced.
- CQ5263 vertical lathe — max turning Ø 6,300 mm, workpiece up to 50 t
- C5235 vertical lathe — Ø 4,000 mm, 30 t
- CW61125 horizontal lathe — 8,000 mm (shafts & rotors)
- Z3080 radial drill — Ø 80 mm
- 315T hydraulic press
- Runner static balancing — sub-millimetre eccentricity correction
Frequently Asked Questions
What site data do you need to quote a turbine?
Net head and flow are the two essential figures — site location and grid connection point help us refine the layout. Send whatever you have: our engineers will tell you within 48 hours what the free preliminary study requires.
Do you supply spare parts after commissioning?
Yes. Runners, shafts, bearings, nozzles, needles, deflectors, seals and governor parts are manufactured on plan and supplied throughout the plant’s life.
Can you support installation and commissioning on site?
Yes. TC supplies and supervises the electromechanical installation, and HIER Madagascar provides local execution, O&M and logistics across Sub-Saharan Africa.