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Easily scalable and with minimal ecological impact, VETT is designed for low-head hydro settings of 5 metres and below. Depending on the setting and flow rate, we have the following solutions:



For flow rates from 2,000 l/s 

For run-of-river hydro project with a flow rate larger than 1,500 l/s.

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For flow rates from 500 l/s

For temporary or permanent off-grid generation at remote sites.

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For tidal range projects

For use in tidal estuaries or lagoons, bi-directional as well as uni-directional for ebb or flow mode.


The Standard VETT is VerdErg's original hydropower solution. It can be installed in an open concrete tank for systems above 30 kW to 1MW+.


It targets run-of-river projects but can be placed in any low-pressure water course, such as waste water outfalls or water treatment plants.


Each system is individually scalable to cover installed capacities from 20 to 180kW and multiple units are installed in parallel to cover larger projects. The system can be grid connected, power mini grids or used off-grid.

A VETT turbine during installation at Ea

A Standard VETT turbine during installation at Eaton Socon, Cambridgeshire, UK.

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Suitable Locations

Weirs, Streams, Locks, Rivers and Wastewater outfalls 

Design Flow

Starting from 1.5 m /s



1.0 - 5.0 m

Standard VETT

VETT-in-a-Box brings electricity to the most remote, off-grid locations worldwide and has the potential to replace hundreds of diesel-powered generators.


It is a 'plug & play' solution that arranges an entire mini system in a portable, easy to install, container-based arrangement that is manufactured off-site. This includes a 2-30 kW power cabinet for direct electricity consumption or connection to a local mini grid. VETT-in-a-Box can also be mass produced.

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VETT-in-a-Box is an innovative, ducted VETT design that is compact, transportable, and can be mass produced.

This innovative mini hydropower system is installable in a stretch of flowing water using flow rates from ca. 500 l/s and a head drop of only 2m, integrated directly into or adjacent to a water course.


VETT-in-a-Box is ideal for smaller or remote run-of-river projects, as well as waste water outfalls or pressure reduction points. Temporary setup only is also feasible, making it suitable for disaster relief responses.

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VETT-in-a-Box is an ultra-compact and portable design. 

Tidal VETT

Tidal VETT is a patented bi directional VETT uniquely suitable for power generation from tidal flows such as estuaries and tidal channels because of its benign environmental footprint and competitive capital cost.


Due to its ability to cost effectively extract energy from low-head flows, a VETT tidal system is substantially different to a conventional tidal installation like a barrage or lagoon.

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Conventional tidal schemes require installation of infrastructure that can exploit, over a short period of time, the maximum tidal range present in a given location. This is often 8m and above, especially in the UK.


Due to its ability to amplify a low head for a turbine, a VETT tidal scheme does not require infrastructure of that magnitude.

Instead, the tidal VETT is designed to exploit a lower head over a longer period of time, which preserves the tidal signal in the landwards lagoon. Designed with biodiversity and nature in mind, impacts on flora and fauna are therefore minimised. Crucially, safe fish passage through the primary flow also remains available.

Despite estuaries being identified as a key source of tidal energy within Europe, North America and Asia, no recent conventional tidal schemes have gained approval because of cost and environmental deficiencies. 


VerdErg's aim is to change that. We are continuing our effort for a tidal VETT prototype installation and are thankful for the keen support of various regulators and interest groups, especially Wyre Tidal Energy and Solway Energy Gateway.

In 2010 VerdErg's then-embryonic technology was shortlisted by the UK Government as one of three technologies to be assessed in the UK government 'Severn Tidal Power: Feasibility Study Conclusions and Summary Report'. Our innovative technology was "considered to have some advantage over equivalent conventional tidal barrages" due to its environmentally-friendly design and the fact it presented the lowest cost of energy compared to all other designs.


Click here to read the UK government's feasibility study and conclusions report.


Click here to read VerdErg's own summary report.


We are here to assist. Contact us by phone, email or via our social media channels.

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