Our References

Natel can adapt FishSafe™ RHT designs to the unique needs of many sites. Here is a sampling of some of the locations where we have delivered or are delivering FishSafe™ hydropower.
More about our patented turbine design process.

Reference portfolio

Design study
Operational
Development project
Northeastern United States

Vertical Kaplan runner replacement

Runner upgrade for project requiring downstream passage for eel. There is no change to the power output. This project replaces the existing Kaplan unit with a FishSafe™ Kaplan runner, new discharge ring, and runner housing fairings. The project uses the existing generator, and there is no change to the civil works.

Capacity:
9 MW per unit
Head:
6.5 m (21 ft)
Unit Diameter:
5.5 m (18 ft)
Unit Type:
Variable-pitch Kaplan (minimum-gap)
Northeastern United States

S-Type Kaplan runner replacement

Runner upgrade to provide downstream passage for American eel with no change in power. FishSafe™ Kaplan runner and new discharge ring replace existing equipment. There are no changes to the existing civil works or generator.

Capacity:
9 MW per unit
Head:
11 m (36 ft)
Unit Diameter:
3.9 m (13 ft)
Unit Type:
S-Type variable-pitch Kaplan
Central Europe

Vertical Kaplan runner replacement

Upgrade project requiring downstream passage for eel and salmonids without a change in power from the existing unit. No changes are required to the existing civil works or existing generator.

Capacity:
7 MW per unit
Head:
10 m (33 ft)
Unit Diameter:
3.8 m (13 ft)
Unit Type:
Variable-pitch Kaplan (minimum-gap)
Northeastern United States

Vertical Francis runner replacement

This FishSafe™ Francis runner will require no change to the existing civil works and will not change power output but will allow downstream passage for eel.

Capacity:
17 MW per unit
Head:
19 m (62 ft)
Unit Diameter:
4.4 m (14 ft)
Unit Type:
Francis
Northeastern United States

Vertical Francis runner replacement

Project provides through-turbine downstream passage for eel, shad, and salmonids and produces no change in power output. This fixed pitch FishSafe propeller unit replaces a Francis runner.

Capacity:
3 MW per unit
Head:
11 m (36 ft)
Unit Diameter:
2.7 m (9 ft)
Unit Type:
Fixed-pitch propeller
Mid-Atlantic United States

Vertical Kaplan runner replacement

This runner upgrade project will use the existing generator, discharge ring, and civil works, requiring only the modification of some guidevanes. The project will provide downstream passage for American eel.

Capacity:
27 MW per unit
Head:
22 m (74 ft)
Unit Diameter:
4.3 m (14 ft)
Unit Type:
Fixed-pitch propeller
Großsulz, Austria

Sauerbrunn Hydro Project

The first European RHT installation is located on a tributary to the River Mur in Graz, Austria.

Capacity Per Unit:
15 kW total
Head:
1.9 m (6 ft)
Unit Diameter:
0.62 m (2 ft)
Unit Type:
Bulb fixed-pitch propeller
Owner:
Energie Steiermark
Developer:
Energie Steiermark
Culver, Oregon

Monroe Drop Hydro Project

The Monroe Hydro Project makes use of an existing irrigation canal to generate 300 kW of reliable, renewable energy annually to serve Central Oregon communities via the local grid. Monroe Drop is certified as a Low Impact Hydropower project.

Capacity Per Unit:
300 kW total
Head:
5 m (16 ft)
Unit Diameter:
1.9 m (6 ft)
Unit Type:
Pit fixed-pitch propeller
Owner:
Now Energy
Developer:
Natel Energy
Freedom, Maine

The Mill at Freedom Falls

The historic Freedom Falls Mill is situated on the headwaters of Sandy Stream in central Maine. The project delivers 35 kW to the surrounding community and directly to the operation of The Mill’s Lost Kitchen restaurant. The Freedom Falls Mill is certified as a Low Impact Hydropower project.

Capacity Per Unit:
35 kW total
Head:
7 m (23 ft)
Unit Diameter:
0.55 m (2 ft)
Unit Type:
Pit fixed-pitch propeller
Owner:
The Lost Kitchen
Developer:
Natel Energy
Shreveport, LA

Red River Lock & Dam No. 5

Natel's Red River project will add power generation to existing non-powered dams on the J. Walter Bennett Waterway in Louisiana.

Capacity:
20 MW total
Head:
7.3 m (24 ft)
Unit Diameter:
2.4 m (8 ft)
Unit Type:
Z-type fixed-pitch propeller
Commission Date:
expected 2029
Campti, LA

Red River Lock & Dam No. 4

The Red River project will add power generation to existing non-powered dams on the J. Walter Bennett Waterway in Louisiana.

Capacity:
20 MW total
Head:
7.3 m (24 ft)
Unit Diameter:
2.4 m (8 ft)
Unit Type:
Z-type fixed-pitch propeller
Commission Date:
expected 2029
Colfax, Louisiana

Red River Lock & Dam No. 3

The Red River project will add power generation to existing non-powered dams on the J. Walter Bennett Waterway in Louisiana.

Capacity:
34 MW total
Head:
8.5 m (28 ft)
Unit Diameter:
2.4 m (8 ft)
Unit Type:
Z-type fixed-pitch propeller
Commission Date:
expected 2028
Natel Energy
2401 Monarch Street
Alameda, CA 94501, USA
info@natelenergy.com
510.342.5269

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Natel Energy, Inc.
2401 Monarch Street
Alameda, CA 94501, USA
Tel 510.342.5269
Fax 866.710.5144
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