Certified Facilities

Low Impact Certification means that the hydropower facility has been found by the Institute to meet or exceed the Institute’s Certification Criteria which address eight key areas: ecological flow regimes, water quality, upstream fish passage, downstream fish passage and protection, shoreline and watershed protection, threatened and endangered species protection, cultural and historic resource protection, and recreational resources. Certification is designed to provide consumers with assurance that a facility has avoided or reduced their environmental impacts pursuant to the Low Impact Hydropower Institute’s criteria. Once certified, the owner or operator can market the power from the facility to consumers as produced by a LIHI Certified Facility. Certification from the Institute may also qualify the power produced for other “green” energy certification programs.

The following hydropower facilities have been certified by the Low Impact Hydropower Institute and assigned a LIHI Certificate Number.

A sortable/searchable Excel spreadsheet listing all Certified Facilities with more information can be found here. Last updated May 20, 2022.

Certificate No.

Project Name

River

State(s)

Certificate Anniversary Month

188

Androscoggin River

NH

March

187

Ohio River

OH/WV

August

186

La Chute River

NY

August

185

La Chute River

NY

August

184

City of Fitchburg Water Supply System

MA

June

183

Penobscot River, West Branch

ME

May

182

Saco River

ME

April

181

White River

AR

June

180

White River

AR

June

179

White River

AR

June

178

Sandy Stream

ME

November

177

Hudson River

NY

July

176

Androscoggin River

NH

August

175

Androscoggin River

NH

August

174

Androscoggin River

NH

August

173

Androscoggin River

NH

August

172

Hudson River

NY

July

171

Sacandaga River

NY

June

170

Chicopee River

MA

April

169

Saco River

ME

April

168

Sebec River

ME

December

167

Penobscot River, West Branch

ME

September

166

Quinebaug and Five Mile Rivers

CT

June

165

Quinnipiac River

CT

August

164

Hudson River

NY

June

163

Androscoggin River

ME

June

162

Merrimack River

NH

May

161

Oswegatchie River

NY

May

160

Connecticut River

NH/VT

May

159

Salmon River

NY

April

158

Salmon River

NY

April

157

Raquette River

NY

April

156

Raquette River

NY

April

155

Erie Canal

NY

April

154

Clyde River

VT

March

153

Androscoggin River

NH

March

152

Shenandoah River, North Fork

VA

March

151

West Delaware Aqueduct

NY

March

150

Pemigewasset River

NH

February

149

Hoosic River

VT

December

148

Little River

VT

November

147

Upper Ammonoosuc River

NH

June

146

Winooski River

VT

October

145

Crooked River

OR

April

144

Oswegatchie River

NY

July

143

Hood River, Middle Fork

OR

February

142

Merrimack River

MA

August

141

Presumpscot River

ME

September

140

Presumpscot River

ME

September

139

Presumpscot River

ME

September

138

Presumpscot River

ME

September

137

Presumpscot River

ME

September

136

Millers River

MA

April

135

Winooski River, North Branch

VT

March

134

Otter Creek

VT

December

133

Housatonic River, East Branch

MA

December

131

Snake River

ID

October

130

Chicopee Aqueduct

MA

August

129

Presumpscot River

ME

April

128

Otter Creek

VT

January

127

Whitman River

MA

September

125

Millers River

MA

September

124

Black River

VT

July

123

Winnipesaukee River

NH

March

122

Ottauquechee River

VT

March

121

Merrimack River

MA

March

120

Piscataquaog River

NH

January

119

Westfield River

MA

March

118

Suncook River

NH

February

117

Winnipesaukee River

NH

December

116

Lower Susquehanna River

PA

January

115

Housatonic River

MA

April

114

Mahoning Creek

PA

November

113

Penobscot River

ME

November

112

Chicopee River

MA

July

111

Spicket River

MA

August

109

Rogue River, South Fork

OR

December

108

Connecticut River

NH / VT

December

107

Poultney River

VT / NY

December

106

Shetucket River

CT

March

105

Shetucket River

CT

March

104

Contoocook River

NH

December

102

Chicopee River

MA

December

100

Salmon Falls River

NH

September

99

Otter Creek

VT

February

98

Otter Creek

VT

February

97

Black River

VT

February

96

Chicopee River

MA

March

95

Passumpsic River

VT

February

94

Passumpsic River

VT

February

93

Passumpsic River

VT

February

92

Passumpsic River

VT

February

91

Sucker Brook

VT

February

90

Deerfield River

MA / VT

April

89

Connecticut River and Holyoke Canal System

MA

January

88

Chicopee River

MA

March

86

Holyoke Canal System

MA

December

85

Lulls Brook

VT

April

82

Newfound River

NH

May

81

Boise River

ID

September

80

Deerfield River

MA

February

79

Sebasticook River

ME

November

78

Black River

VT

February

77

Winooski River

VT

February

76

Quinebaug River

MA

April

74

French River

CT

January

73

Deschutes River

OR

October

72

Messalonskee Stream

ME

February

71

Columbia River

WA

July

69

North Umpqua River, Clearwater River, Fish Creek,

OR

December

68

Westfield River

MA

January

67

Penobscot River, Stillwater Branch

ME

June

66

Penobscot River, Stillwater Branch

ME

June

65

Penobscot River, West Branch

ME

June

64

Contoocook River

NH

August

63

Mohawk River

NY

November

62

Bear River

UT

December

61

Henry's Fork, Snake River

ID

December

60

Messalonskee Stream

ME

May

59

Messalonskee Stream

ME

May

58

Messalonskee Stream

ME

May

57

Wachusett Reservoir

MA

April

56

Long Road Covered Storage Facility

MA

April

55

Cosgrove Aqueduct

MA

April

54

Nashua River

NH

January

53

Bear River

ID

December

52

Contoocook River

NH

September

51

Arkansas River

AR

January

48

Androscoggin River

ME

September

47

Ware River

MA

August

46

Ashuelot River

NH

June

45

Hood River

OR

March

44

Nashua River

MA

August

43

Boston Harbor

MA

August

42

Connecticut River

NH / VT

June

40

Connecticut River

NH / VT

December

39

Connecticut River

NH / VT

December

38

Androscoggin River

ME

December

37

North Platte and Platte Rivers

NE

May

35B

Oswego River

NY

December

35A

Oswego River

NY

December

34

Black River

NY

December

33

Willamette River

OR

November

32

Oswegatchie River

NY

November

31

Boulder Creek

MT

October

30

Chelan River

WA

September

29

Provo River

UT

June

27

West Branch, St. Regis River

NY

September

26

Pitchfork Falls Creek

AK

October

25

Deschutes River

OR

October

24

Kentucky River

KY

August

23

Juniata River

PA

August

22

Black Bear Creek

AK

May

21

Buffalo River

ID

November

20

Salmon River

NY

November

19

Westfield River

MA

August

18

Cheoah and Little Tennessee Rivers

NC / TN

March

17

Gauley River

WV

November

16

Winooski River

VT

July

15

Kansas River

KS

July

14C

Raquette River

NY

July

14B

Raquette River

NY

July

14A

Raquette River

NY

July

13

Hoosic River

NY

July

12

Middle Oconee River

GA

April

11

Blackstone River

RI

April

10

Androscoggin River

ME

March

8

Nisqually River

WA

April

7

Beaver River

NY

July

5

Skagit River

WA

May

4

Falls Creek

OR

June

3

Quinebaug River

CT

April

2

Henry’s Fork Snake River

ID

December