Micro PAT Turbine

Hi everyone,

Expanding on our discussions about micro hydropower, we wanted to share some details about our Pump as Turbine (PAT) units.

Unlike traditional turbine types (like Peltons), Pump as Turbine (PAT) technology utilises standard centrifugal pumps operating in reverse. This approach makes them a particularly cost-effective solution for extracting energy from available water head and flow.

PAT units are ideally suited for applications where you have consistent head and flow available, and their design allows them to operate effectively even with back pressure present on the outlet side. This capability makes them exceptionally well-suited for integration into systems like irrigation networks, where pressure variations and existing infrastructure are common.

Similar to our other micro hydropower solutions, we've focused on making PAT technology accessible for small-scale users. We achieve this by pairing the PAT with the same reliable standard induction generator technology and our specially adapted control system. This shared platform means owners benefit from convenient remote access for monitoring and management, just like with our Pelton units.

A significant advantage of using PATs is their low cost compared to purpose-built turbines, although this often comes with a reduced optimal operating range. However, because they are based on readily available standard pumps (with minor modifications for turbine use), maintenance and sourcing spares are generally straightforward and within reach for most operators.

These WD Power PAT micro hydropower units are now possible, benefitting on the developments done on our Francis turbines.

We're keen to hear your thoughts on PAT technology, its potential in irrigation, or any questions you have about our approach using standard generators and controls. Please comment below!

Thanks,
WD Power Team

Head Range: 10m – 80m
Flow Range: 10lt/s – 300lt/s

WDPower-Micro-PaT.pdf