EnviroGen 025 Series

The EnviroGen 025 Series is our mid-sized line of power generation systems with output capacities from 20 – 50 kW depending on application specific conditions.

Larger than the 005 series, these systems are suitable for remote or grid connected configurations including supplementing existing diesel micro-grids or direct grid connections. The system components fit in a shipping container for easy transportation to site. Size and weight of components necessitates the use of lifting equipment for assembly and placement in the water.

The 25 kW systems are suitable for communities and other installations with medium energy requirements, located near a river or canal that can support the depth and volume of water required for the rotor.

24 hour a day generation makes these systems suitable to power critical applications such as refrigeration or telecommunications. Application flexibility means they can be deployed in a variety of settings whether floating or fixed in position. Multiple units can increase plant output to 100 kW or more depending on the requirements and the resource.

Features

Safe
- Safety brake to secure system when not operating
- Minimal impact on marine life
Flexible Interconnection
- Worldwide grid connect operation ready
- Fixed or floating configurations available
- Modular design for multi-system integration
Efficient
- Multi-directional operation for tidal or river generation
- No greenhouse gas emissions
- Easily assembled with powered lifting assistance
Robust
- Corrosion protected
- Complete metal construction

Model Number	w	h1	Speed (RPM)	Power Output	Design Water Velocity*	Weight	Generator Output
EVG-025H**	3.4m	1.7m	35	25kW	3m/s	TBD	3ϕ, 300V
EVG-050H***	3.4m	3.4m	35	50kW	3m/s	TBD	3ϕ, 300V

* Lower design velocity units available on request.
**Available for pre-order - delivery summer 2016.
***Available for pre-order - delivery summer 2017.

Power Curves

Minimum Clearances

Minimum water depths and widths are required for operation of the specified model. Adequate clearance must be maintained above the rotor to avoid ventilation behind the hydrofoils, and below the rotor to avoid contact with the riverbed or channel both during operation and during rotation of the system into or out of the water for maintenance or transport. In channel applications, a minimum side clearance is recommended to limit pressure pulsations on the channel walls. The power units can be mounted by a fixed support or by a floating support. The clearance requirements may vary for different support configurations, installation environments, or customer preferences. The values provided below are intended as guidelines for an ideal installation scenario.

Fixed Support

Floating Support

Model Number	Rotor Width (w)	Rotor Clearance (c)	Bottom Clearance (d1)	Fixed Support Depth Required (d2)	Floating Support Depth Required (d3)	Boat Width (w3)
EVG-025H	3.4m	3.9m	0.73m	3m	3.35m	5.8m
EVG-050H	3.4m	3.9m	0.73m	4.7m	5.05m	5.8m