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 downloaded HERE. Last updated June 20, 2024.

Certificate No.	Project Name	River	State(s)	Certificate Anniversary Month
202	Lower Great Falls	Salmon Falls River	NH/ME	February
201	Bolton Falls	Winooski River	VT	January
200	Monroe Drop	North Unit Main Canal	OR	February
199	Hailesboro No. 6	Oswegatchie River	NY	February
198	Hailesboro No. 4	Oswegatchie River	NY	February
197	Hailesboro No. 3	Oswegatchie River	NY	February
196	Rollinsford	Salmon Falls River	NH/ME	December
195	South Berwick	Salmon Falls River	NH/ME	December
194	Meldahl	Ohio River	OH/KY	September
192	High Falls	Deer River	NY	October
191	American Tissue	Cobbosseecontee Stream	ME	April
190	Braddock Locks and Dam	Monongehala River	PA	July, until operations commence
189	Mattaceunk	Penobscot River	ME	March
188	Cascade	Androscoggin River	NH	March
187	Willow Island	Ohio River	OH/WV	August
186	Lower La Chute	La Chute River	NY	August
185	Upper La Chute	La Chute River	NY	August
184	Narrows Road PRV Station	City of Fitchburg Water Supply System	MA	June
183	North Twin	Penobscot River, West Branch	ME	May
182	Bonny Eagle	Saco River	ME	April
181	White River Lock/Dam No. 3	White River	AR	June
180	White River Lock/Dam No. 2	White River	AR	June
179	White River Lock/Dam No. 1	White River	AR	June
178	Freedom Falls	Sandy Stream	ME	November
177	Sherman Island	Hudson River	NY	July
176	Shelburne	Androscoggin River	NH	August
175	Upper Gorham	Androscoggin River	NH	August
174	Cross Power	Androscoggin River	NH	August
173	Sawmill	Androscoggin River	NH	August
172	Glens Falls	Hudson River	NY	July
171	Stewarts Bridge	Sacandaga River	NY	June
170	Dwight	Chicopee River	MA	April
169	Cataract	Saco River	ME	April
168	Milo	Sebec River	ME	December
167	Millinocket-Dolby	Penobscot River, West Branch	ME	September
166	Quinebaug – Five Mile Pond	Quinebaug and Five Mile Rivers	CT	June
165	Hanover Pond Dam	Quinnipiac River	CT	August
164	Feeder Dam	Hudson River	NY	June
163	Deer Rips/Androscoggin No. 3	Androscoggin River	ME	June
162	Hooksett	Merrimack River	NH	May
161	Oswegatchie River	Oswegatchie River	NY	May
160	Canaan	Connecticut River	NH/VT	May
159	Macomb	North Salmon River	NY	April
158	Chasm	North Salmon River	NY	April
157	Yaleville	Raquette River	NY	April
156	Piercefield	Raquette River	NY	April
155	Hydraulic Race	Erie Canal	NY	April
154	Barton Village	Clyde River	VT	March
153	Gorham	Androscoggin River	NH	March
152	Burnshire	Shenandoah River, North Fork	VA	March
151	West Delaware Tunnel	West Delaware Aqueduct	NY	March
150	Eastman Falls	Pemigewasset River	NH	February
149	Pownal	Hoosic River	VT	December
148	Waterbury	Little River	VT	November
147	Brooklyn Dam	Upper Ammonoosuc River	NH	June
146	Essex 19	Winooski River	VT	October
145	Opal Springs	Crooked River	OR	April
144	Emeryville	Oswegatchie River	NY	July
143	Middle Fork Irrigation District	Hood River, Middle Fork	OR	February
142	Lowell	Merrimack River	MA	August
141	Mallison Falls	Presumpscot River	ME	September
140	Little Falls	Presumpscot River	ME	September
139	Gambo	Presumpscot River	ME	September
138	Dundee	Presumpscot River	ME	September
137	Eel Weir	Presumpscot River	ME	September
136	New Home Dam	Millers River	MA	April
135	Ladd's Mill	Winooski River, North Branch	VT	March
134	Vergennes	Otter Creek	VT	December
133	Byron Weston No. 2	Housatonic River, East Branch	MA	December
131	Chester Diversion	Snake River	ID	October
130	Chicopee Valley Aqueduct	Chicopee Aqueduct	MA	August
129	North Gorham	Presumpscot River	ME	April
128	Otter Creek	Otter Creek	VT	January
127	Crocker Dam	Whitman River	MA	September
125	Hunts Pond Dam	Millers River	MA	September
124	Comtu Falls	Black River	VT	July
123	Stevens Mill	Winnipesaukee River	NH	March
122	Downer's Mill	Ottauquechee River	VT	March
121	Lawrence	Merrimack River	MA	March
120	Gregg's Falls	Piscataquaog River	NH	January
119	Texon	Westfield River	MA	March
118	Webster Pembroke	Suncook River	NH	February
117	Clement Dam	Winnipesaukee River	NH	December
116	Holtwood	Lower Susquehanna River	PA	January
115	Glendale	Housatonic River	MA	April
114	Mahoning Creek	Mahoning Creek	PA	November
113	Milford	Penobscot River	ME	November
112	Indian Orchard	Chicopee River	MA	July
111	Methuen Falls	Spicket River	MA	August
109	Prospect No. 3	Rogue River, South Fork	OR	December
108	Gilman	Connecticut River	NH / VT	December
107	Carver Falls	Poultney River	VT / NY	December
106	Greenville	Shetucket River	CT	March
105	Occum	Shetucket River	CT	March
104	Rolfe Canal	Contoocook River	NH	December
102	Putts Bridge	Chicopee River	MA	December
100	South Milton	Salmon Falls River	NH	September
99	Middlebury Lower	Otter Creek	VT	February
98	Weybridge	Otter Creek	VT	February
97	Cavendish	Black River	VT	February
96	Red Bridge	Chicopee River	MA	March
95	Passumpsic	Passumpsic River	VT	February
94	Gage	Passumpsic River	VT	February
93	Arnold Falls	Passumpsic River	VT	February
92	Pierce Mills	Passumpsic River	VT	February
91	Silver Lake	Sucker Brook	VT	February
90	Deerfield River	Deerfield River	MA / VT	April
89	Holyoke	Connecticut River and Holyoke Canal System	MA	January
88	Collins	Chicopee River	MA	March
86	Open Square	Holyoke Canal System	MA	December
85	Martinsville	Lulls Brook	VT	April
82	Newfound	Newfound River	NH	May
81	Arrowrock	Boise River	ID	September
80	Gardners Falls	Deerfield River	MA	February
79	Benton Falls	Sebasticook River	ME	November
78	Slack Dam	Black River	VT	February
77	Winooski 8	Winooski River	VT	February
76	West Dudley	Quinebaug River	MA	April
74	Mechanicsville	French River	CT	January
73	Siphon Power	Deschutes River	OR	October
72	Automatic	Messalonskee Stream	ME	February
71	Dalles Dam North Fishway	Columbia River	WA	July
69	North Umpqua	North Umpqua River, Clearwater River, Fish Creek,	OR	December
68	Woronoco	Westfield River	MA	January
67	Stillwater	Penobscot River, Stillwater Branch	ME	June
66	Orono	Penobscot River, Stillwater Branch	ME	June
65	Medway	Penobscot River, West Branch	ME	June
64	Penacook Lower Falls	Contoocook River	NH	August
63	School Street	Mohawk River	NY	November
62	Cutler	Bear River	UT	December
61	Ashton	Henry's Fork, Snake River	ID	December
60	Oakland	Messalonskee Stream	ME	May
59	Rice Rips	Messalonskee Stream	ME	May
58	Union Gas	Messalonskee Stream	ME	May
57	Oakdale	Quabbin Aqueduct	MA	April
56	Loring Road	Cosgrove Aqueduct	MA	April
55	Cosgrove	Cosgrove Aqueduct	MA	April
54	Jackson Mills	Nashua River	NH	January
53	Bear River	Bear River	ID	December
52	Penacook Upper Falls	Contoocook River	NH	September
51	Arkansas River Dam No.2	Arkansas River	AR	January
48	Androscoggin	Androscoggin River	ME	September
47	Ware River	Ware River	MA	August
46	Ashuelot & Lower Robertson	Ashuelot River	NH	June
45	Farmers Irrigation District	Hood River	OR	March
44	Ice House	Nashua River	MA	August
43	Deer Island	Boston Harbor	MA	August
42	Dodge Falls	Connecticut River	NH / VT	June
40	Vernon	Connecticut River	NH / VT	December
39	Fifteen Mile Falls	Connecticut River	NH / VT	December
38	Rumford Falls	Androscoggin River	ME	December
37	Kingsley Dam	North Platte and Platte Rivers	NE	May
35B	Oswego River	Oswego River	NY	December
35A	Oswego Falls	Oswego River	NY	December
34	Black River and Beebee Island	Black River	NY	December
33	Willamette Falls	Willamette River	OR	November
32	Newton Falls	Oswegatchie River	NY	November
31	Boulder Creek	Boulder Creek	MT	October
30	Lake Chelan	Chelan River	WA	September
29	Jordanelle	Provo River	UT	June
27	West Branch St. Regis	West Branch, St. Regis River	NY	September
26	Goat Lake	Pitchfork Falls Creek	AK	October
25	Pelton Round Butte	Deschutes River	OR	October
24	Mother Ann Lee	Kentucky River	KY	August
23	Raystown	Juniata River, Raystown Branch	PA	August
22	Black Bear Lake	Black Bear Creek	AK	May
21	Buffalo River	Buffalo River	ID	November
20	Salmon River	Salmon River	NY	November
19	West Springfield	Westfield River	MA	August
18	Smoky Mountain	Cheoah and Little Tennessee Rivers	NC / TN	March
17	Summersville	Gauley River	WV	November
16	Winooski One / Chace Mill	Winooski River	VT	July
15	Bowersock Mills	Kansas River	KS	July
14C	Lower Raquette River	Raquette River	NY	July
14B	Middle Raquette River	Raquette River	NY	July
14A	Upper Raquette River	Raquette River	NY	July
13	Hoosic River	Hoosic River	NY	July
12	Tallassee Shoals	Middle Oconee River	GA	April
11	Pawtucket	Blackstone River	RI	April
10	Worumbo	Androscoggin River	ME	March
8	Nisqually	Nisqually River	WA	April
7	Beaver River	Beaver River	NY	July
5	Skagit	Skagit River	WA	May
4	Falls Creek	Falls Creek	OR	June
3	Putnam	Quinebaug River	CT	April
2	Island Park	Henry’s Fork Snake River	ID	December