99 Islands
1502 Ninety-Nine Islands, Blacksburg, SC 29702Plant Summary Information
99 Islands is ranked #14 out of 27 hydroelectric power plants in South Carolina in terms of total annual net electricity generation.
99 Islands is comprised of 4 generators and generated -60.0 MWh during the 3-month period between September 2024 to December 2024.
| Plant Name | 99 Islands |
|---|---|
| Utility Name | Duke Energy Carolinas, LLC |
| Location | Cherokee County, SC |
| Initial Operation Date | May 1910 |
| Last Update | Dec 2024 |
| Annual Generation | 36.5 GWh |
| Annual Consumption | 139.5 k MMBtu |
| Ranked #4,391 out of 12,288 Power Plants Nationwide | |
| Ranked #568 out of 1,323 Water Power Plants Nationwide | |
| Ranked #57 out of 192 South Carolina Power Plants | |
| Ranked #14 out of 27 South Carolina Water Power Plants | |
| Fuel Types | Water |
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Monthly Net Generation for 99 Islands
99 Islands Details
| Summary Information | |
|---|---|
| Plant Name | 99 Islands (3272) |
| Plant Address | 1502 Ninety-Nine Islands, Blacksburg, SC 29702 |
| Utility | Duke Energy Carolinas, LLC (5416) |
| Latitude, Longitude | 35.0314, -81.4936 |
| Generation Dates on File | Jan 2001 to Dec 2024 |
| Initial Operation Date | May 1910 |
| Annual Generation | 36.5 GWh |
| Fuel Types | Water |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | SERC |
| Balancing Authority | Duke Energy Carolinas (DUK) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Broad River |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Duke Energy Carolinas, LLC (5416) SC |
| Grid Voltage | 44.00 kV |
| Energy Storage | No |
Generator 1 Details Operating May 1910
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 3 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 4.2 MW |
| Winter Capacity | 4.2 MW |
| Minimum Load | 4.2 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | May 1910 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
Generator 2 Details Operating May 1910
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 3 MW |
| Nameplate Power Factor | 1 |
| Summer Capacity | 3.4 MW |
| Winter Capacity | 3.4 MW |
| Minimum Load | 3.4 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | May 1910 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
Generator 3 Details Operating May 1910
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 3 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 4.2 MW |
| Winter Capacity | 4.2 MW |
| Minimum Load | 4.2 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | May 1910 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
Generator 4 Details Operating May 1910
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 3 MW |
| Nameplate Power Factor | 1 |
| Summer Capacity | 3.4 MW |
| Winter Capacity | 3.4 MW |
| Minimum Load | 3.4 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | May 1910 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
99 Islands Plant Owners
| Owner Name | Address | Generator | Ownership |
|---|---|---|---|
| We couldn't locate any owners for this plant | |||
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Water.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #558 | Essex Junction 19 | Essex Junction, VT | 37.6 GWh |
| #559 | Cascade Dam | Cascade, ID | 37.4 GWh |
| #560 | Green Island Hydroelectric Station | Green Island, NY | 37.4 GWh |
| #561 | Tims Ford | Winchester, TN | 37.3 GWh |
| #562 | Milford Hydro Station | Milford, ME | 37.2 GWh |
| #563 | Higley | Colton, NY | 37.2 GWh |
| #564 | Robbs Peak | Fresh Pond, CA | 37.0 GWh |
| #565 | Peavy Falls | Crystal Falls, MI | 36.9 GWh |
| #566 | Yough Hydro Power | Confluence, PA | 36.9 GWh |
| #567 | Tennessee Creek | Tuckasegee, NC | 36.8 GWh |
| #569 | Monticello Dam | Winters, CA | 36.4 GWh |
| #570 | Lake Blackshear Project | Warwick, GA | 36.3 GWh |
| #571 | Aziscohos Hydroelectric Project | Wilson Mills, ME | 36.3 GWh |
| #572 | Big Falls | Glen Fora, WI | 36.1 GWh |
| #573 | Tiber Dam Hydroelectric Plant | Chester, MT | 36.1 GWh |
| #574 | Terrora | Tallulah Falls, GA | 35.9 GWh |
| #575 | Granby | Fulton, NY | 35.6 GWh |
| #576 | PHP 2 | Sandy, OR | 35.5 GWh |
| #577 | Pinnacles | Ararat, VA | 35.1 GWh |
| #578 | Bonny Eagle | Hollis, ME | 33.0 GWh |
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Below are closest 20 power plants surrounding 99 Islands.
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|---|---|---|---|
| 231 Dixon 74 Solar I, LLC | Kings Mountain, NC | 3.7 GWh | 15.1 mi |
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| Hutchinson Farm | Shelby, NC | 9.6 GWh | 15.9 mi |
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| Lafayette Solar I, LLC | Shelby, NC | 3.3 GWh | 14.4 mi |
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| SID Solar I, LLC | Shelby, NC | 7.9 GWh | 15.7 mi |
| Upper Pacolet Hydro | Pacolet, SC | 4.0 GWh | 16.2 mi |
| York Road Solar I, LLC | Kings Mountain, NC | 3.5 GWh | 16 mi |