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{{Use mdy dates|date=May 2024}}
{{Infobox power station
{{Infobox dam
| name = Ludington Pumped Storage Plant
| name = Ludington Pumped Storage Plant
| official_name =
| name_official =
| image = GENERATING STATION OF CONSUMER POWER PLANT IN LUDINGTON - NARA - 547129.tif
| image_size = | image = File:LudingtonPumpedHydro.png
| image_caption = Generators of the power plant | image_size = 250px
| image_alt = | image_caption =
| location_map = | image_alt =
| location_map = Michigan
| location_map_width =
| location_map_size =
| location_map_text =
| lat_d = 43 | location_map_caption =
| lat_m = 53 | location_map_alt =
| coordinates = {{coord|43|53|37|N|86|26|43|W|region:US_type:landmark|display=inline,title}}
| lat_s = 37
| country = United States
| lat_NS = N
| location = ]
| long_d = 86
| long_m = 26 | purpose = P
| long_s = 43 | status = O
| construction_began = July 1968
| long_EW = W
| opening = 1973
| coordinates_type = type:landmark
| demolished =
| coordinates_display= inline,title
| cost = $327 million (1973)<ref>{{cite web |url = http://www.midwesterngovernors.org/EnergyStorage/DTEenergy.pdf |title = Ludington Pumped Storage Upgrade & Overhaul |access-date = December 4, 2017 |archive-date = December 5, 2017 |archive-url = https://web.archive.org/web/20171205093053/http://www.midwesterngovernors.org/EnergyStorage/DTEenergy.pdf |url-status = dead }}</ref>
| coordinates_ref =
| country = ] | builder =
| location = ] | owner = ]&nbsp;(51%)<br/>]&nbsp;(49%)
| status = O | operator =
| dam_type = E
| construction_began = 1969
| commissioned = 1973 | dam_crosses =
| dam_height_foundation = {{convert|103|feet}}
| licence_expires =
| decommissioned = | dam_height_thalweg =
| cost = | dam_length = {{convert|6|mile}}
| dam_elevation_crest =
| owner = ]<br />]
| dam_width_crest = {{convert|21|feet}}<ref name="CEG">{{cite news |last1 = Browning |first1 = Edgar A. |title = Looking Back: Ludington Pumped Storage Power Plant |url = https://www.constructionequipmentguide.com/looking-back-ludington-pumped-storage-power-plant/32293 |access-date = December 4, 2017 |work = Construction Equipment Guide |edition = Northeast |date = January 29, 2017 |language = en }}</ref>
| operator =
| developer = | dam_width_base =
| constructor = | dam_volume =
| upper_reservoir = | spillway_count =
| spillway_type =
| upper_res_capacity = {{convert|27|e9USgal}}
| spillway_capacity =
| upper_res_ac_capacity=
| res_name =
| upper_res_elevation=
| res_capacity_total = {{convert|82860|acre.ft}}
| upper_res_catchment=
| upper_res_area = {{convert|1.3|sqmi|km2|adj=on}} | res_capacity_active = {{convert|52171|acre.ft}}
| upper_res_depth = {{convert|110|ft|m}} | res_capacity_inactive = {{convert|30689|acre.ft}}
| res_catchment =
| lower_reservoir = ]
| res_surface = {{convert|842|acres}}
| lower_res_capacity =
| res_max_length = {{convert|2.5|mile}}
| lower_res_ac_capacity=
| res_max_width = {{convert|1|mile}}
| lower_res_elevation=
| res_max_depth = {{convert|110|feet}}
| lower_res_catchment=
| lower_res_area = | res_elevation =
| lower_res_depth = | res_tidal_range =
| penstocks = 6 | lower_dam_type =
| pump_gen_units = 6 | lower_dam_crosses =
| lower_dam_height_foundation =
| turbine_manu_psp =
| hydraulic_head = | lower_dam_height_thalweg =
| lower_dam_length =
| annual_pump_consum =
| lower_dam_elevation_crest =
| installed_capacity = 1,872
| max_planned_cap = | lower_dam_width_crest =
| capacity_factor = | lower_dam_width_base =
| lower_dam_volume =
| average_annual_gen =
| net_generation = | lower_spillway_count =
| website = | lower_spillway_type =
| as_of = | lower_spillway_capacity =
| extra = | lower_res_name = ]
| lower_res_capacity_total = {{convert|1,180|mi3}}
| lower_res_capacity_active =
| lower_res_capacity_inactive =
| lower_res_catchment =
| lower_res_surface = {{convert|22,404|mi2}}
| lower_res_max_length = {{convert|307|mile}}
| lower_res_max_width = {{convert|118|mile}}
| lower_res_max_depth =
| lower_res_elevation = {{convert|577|feet}}
| lower_res_tidal_range =
| plant_name = Power Station
| plant_coordinates = {{coord|43|53|37|N|86|26|43|W|region:US_type:landmark|display=inline}}
| plant_operator =
| plant_commission = 1973
| plant_decommission =
| plant_type = P
| plant_hydraulic_head = {{convert|363|feet}}<ref>{{cite news |last1 = Maclam |first1 = Doug |title = Ludington Pumped Storage Plant Increases Efficiency to Provide Greater Grid Support |url = http://www.powermag.com/ludington-pumped-storage-plant-increases-efficiency-to-provide-greater-grid-support/?printmode=1 |access-date = December 4, 2017 |work = Power Magazine |date = October 1, 2015 }}</ref>
| plant_turbines =
| plant_pumpgenerators = 6 × 362 MW (455 MVA) ]s<ref name="hydroworld">{{cite news |last1 = Ray |first1 = Matthew |last2 = Toro |first2 = Keith |last3 = Kaneda |first3 = Hironari |last4 = Hyuga |first4 = Takeshi |title = Major Overhaul Boosts Performance at Ludington Pumped-Storage Plant |url = http://www.hydroworld.com/articles/hr/print/volume-35/issue-9/cover-story/major-overhaul-boosts-performance-at-ludington-pumped-storage-plant.html |access-date = December 4, 2017 |work = Hydro Review |date = November 11, 2016 }}</ref><ref name="IWP">{{cite news |title = Overhaul at Ludington - International Water Power |url = http://www.waterpowermagazine.com/features/featureoverhaul-at-ludington/ |access-date = December 4, 2017 |work = Water Power Magazine |publisher = International Water Power & Dam Construction |date = January 4, 2012 }}</ref>
| plant_pumps =
| plant_capacity = 2,172 MW <ref>{{Cite web |url = https://energynews.us/2018/09/24/midwest/michigan-utilities-upgrade-pumped-storage-plant-ahead-of-renewable-push/ |title = Michigan utilities upgrade pumped storage plant ahead of renewable push |first = Michael |last = McCluskey |website = Energy News Network |date = September 24, 2018 |language = en-US |access-date = January 30, 2020 }}</ref>
| plant_capacity_factor =
| plant_efficiency = 70%
| plant_storage_hours = 9 hours (19,548 MWh)
| plant_annual_gen = -752
| plant_annual_gen_year = 2016
| website =
| extra =
}} }}

The '''Ludington Pumped Storage Plant''' is a ] plant and ] in ]. It was built between 1969 and 1973 at a cost of $315 million and is owned jointly by ] and ] and operated by Consumers Energy. At the time of its construction, it was the largest ] facility in the world.
The '''Ludington Pumped Storage Plant''' is a ] plant and ] in ]. It was built between 1969 and 1973 at a cost of $315 million and is owned jointly by ] and ] and operated by Consumers Energy. At the time of its construction, it was the largest ] facility in the world.


== Characteristics == == Characteristics ==
]
It consists of a reservoir {{convert|110|ft|m}} deep, {{convert|2.5|mi|km}} long, and {{convert|1|mi|km|spell=in}} wide which holds {{convert|27|e9USgal}} or 82859 ] of water. The {{convert|1.3|sqmi|km2|adj=on}} reservoir is located on the banks of ]. Because impervious bedrock is more than {{convert|800|ft|m}} below the reservoir, the builders had to line the reservoir with a layer of asphalt and clay to prevent water seeping into the ground.


The power plant consists of six reversible turbines that can each generate 312&nbsp;megawatts of electricity for a total output of 1,872&nbsp;megawatts.<ref>{{cite web |url = http://www.consumersenergy.com/content.aspx?id=1830 |title = Ludington Pumped Storage |archive-url = https://web.archive.org/web/20131023024238/http://www.consumersenergy.com/content.aspx?id=1830 |archive-date=October 23, 2013 |publisher = Consumers Energy }}</ref> Water is delivered from the upper reservoir to the turbines by six ]s each {{convert|1100|ft|m}} long that taper from {{convert|28|to|24|ft|m}} in diameter.
It consists of a reservoir {{convert|110|ft|m}} deep, {{convert|2.5|mi|km}} long, and {{convert|1|mi|km|spell=in}} wide which holds {{convert|27|e9USgal}} of water. The {{convert|1.3|sqmi|km2|adj=on}} reservoir is located on the banks of ]. Because impervious bedrock is more than {{convert|800|ft|m}} below the reservoir, the builders had to line the reservoir with a layer of asphalt and clay to prevent water seeping into the ground.

The power plant consists of six reversible turbines that can each generate 312&nbsp;megawatts of electricity for a total output of 1,872&nbsp;megawatts.<ref>, ConsumersEnergy.com website.</ref> Water is delivered from the upper reservoir to the turbines by six ]s each {{convert|1100|ft|m}} long that taper from {{convert|28|to|24|ft|m}} in diameter.


At night, during low demand for electricity, the turbines run in reverse to pump water {{convert|363|ft|m}} uphill from Lake Michigan into the reservoir. The plant takes advantage of the natural steep ] landform of eastern Lake Michigan. During periods of peak demand water is released to generate power. Electrical generation can begin within two minutes with peak electric output of 1872&nbsp;MW achieved in under 30&nbsp;minutes. Maximum water flow is over {{convert|33|e6USgal|m3}} per minute. At night, during low demand for electricity, the turbines run in reverse to pump water {{convert|363|ft|m}} uphill from Lake Michigan into the reservoir. The plant takes advantage of the natural steep ] landform of eastern Lake Michigan. During periods of peak demand water is released to generate power. Electrical generation can begin within two minutes with peak electric output of 1872&nbsp;MW achieved in under 30&nbsp;minutes. Maximum water flow is over {{convert|33|e6USgal|m3}} per minute.
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This process was designed to level the load of nearby nuclear power plants on the grid. It also replaces the need to build natural gas peak power plants used only during high demand. The Ludington Pumped Storage plant is connected to six 345-kV Transmission lines, all owned and maintained by METC, a subsidiary of ITC Holdings. This process was designed to level the load of nearby nuclear power plants on the grid. It also replaces the need to build natural gas peak power plants used only during high demand. The Ludington Pumped Storage plant is connected to six 345-kV Transmission lines, all owned and maintained by METC, a subsidiary of ITC Holdings.


The project was given the 1973 award for "Outstanding Civil Engineering Achievement" by the ].<ref name="past_ocea">{{Cite web |url = http://www.asce.org/opal/past_ocea.cfm#1973 |title = Past Outstanding Civil Engineering Achievement Awards |publisher = ] |url-status = dead |archiveurl = https://web.archive.org/web/20081010140842/http://www.asce.org/opal/past_ocea.cfm |archivedate = October 10, 2008 }}</ref>
== Awards and recognition ==

This project was given the 1973 award for "Outstanding Civil Engineering Achievement" by the ].<ref name="past_ocea">{{Cite web
|url=http://www.asce.org/opal/past_ocea.cfm#1973
|title=Past Outstanding Civil Engineering Achievement Awards
|publisher=]
}}</ref>

In 2013, the Pumped Storage Plant celebrated its 40th anniversary, receiving special recognition from both ] and Washington for "providing reliable and low-cost power" to ] and surrounding areas. Gov. ], Lt. Gov. ], Sen. Goeff Hansen and Rep. ] were among those who signed a special tribute to the project, which was delivered by Rep. Franz personally. With this recognition came the start of its $800 million upgrade, announced previously in February 2007.<ref name="past_ocea">{{Cite web
|url=http://www.prnewswire.com/news-releases/ludington-pumped-storage-plant-recognized-for-40-years-of-service-to-customers-and-michigan-216178261.html
|title=Ludington Pumped Storage Plant Recognized For 40 Years Of Service To Customers And Michigan
|publisher=]
}}</ref>


== Upgrade == == Upgrade ==


Consumers Energy discussed plans in 2008 to extend the life of the facility and upgrade the pumps to increase efficiency by up to 9%.<ref name="shoreline_power">{{Cite web |url = http://blog.mlive.com/chronicle/2008/04/shoreline_generates_interest_i.html |title = Shoreline generates interest in power |first = Dave |last = Alexander |work = The Muskegon Chronicle |date = April 12, 2008 |access-date = October 3, 2008 }}</ref> Consumers Energy also planned to tap the ] resources along the eastern Lake Michigan shore with ]s.<ref name="shoreline_power"/> Because wind is an ] and may inconveniently deliver large amounts of power during periods of low electric demand, pumped storage facilities are desirable to have on the same grid with large-scale wind farms. The available pumped storage capacity, along with the wind characteristics, partly determine the maximum contribution wind power can make to the overall electricity use in a region.
Consumers Energy discussed plans in 2008 to extend the life of the facility and upgrade the pumps to increase efficiency by up to 9%.<ref name="shoreline_power">{{Cite web
|url=http://blog.mlive.com/chronicle/2008/04/shoreline_generates_interest_i.html
|title=Shoreline generates interest in power
|first=Dave
|last=Alexander
|publisher=The Muskegon Chronicle
|date=2008-04-12
|accessdate=2008-10-03
}}</ref> Consumers Energy also planned to tap the ] resources along the eastern Lake Michigan shore with ]s.<ref name="shoreline_power"/> Because wind is an ] and may inconveniently deliver large amounts of power during periods of low electric demand, pumped storage facilities are desirable to have on the same grid with large-scale wind farms. The available pumped storage capacity, along with the wind characteristics, partly determine the maximum contribution wind power can make to the overall electricity use in a region.


Consumers Energy and Detroit Edison announced an $800 million upgrade on February 7, 2011. The six year project would begin in 2013 and extend the plant's life by at least forty years and upgrade the generating capacity from 1,872 megawatts to 2,172 megawatts.<ref>{{Cite web|url= Consumers Energy and Detroit Edison announced an $800 million upgrade on February 7, 2011. The six-year project would begin in 2013 and extend the plant's life by at least forty years and upgrade the generating capacity from 1,872 megawatts to 2,172 megawatts.<ref>{{Cite web |url = http://www.ludingtondailynews.com/news/55529-consumers-energy--detroit-edison-announce-800-million-upgrade-of-ludington-pumped-storage-facility |title = Consumers Energy, Detroit Edison announce $800 million upgrade of Ludington Pumped Storage Facility |work = Ludington Daily News |date = February 7, 2011 |access-date = February 8, 2011 }}</ref> Plans for the upgrade include replacing all six of the plant's turbines, which would increase the plant's total generating capacity by 15 percent, and efficiency by 5 percent. Upon completion, the plant will produce enough power for a community of 1.65 million (a quarter million increase).<ref name="pr_newswire">{{Cite press release |url = http://www.prnewswire.com/news-releases/ludington-pumped-storage-plant-recognized-for-40-years-of-service-to-customers-and-michigan-216178261.html |title = Ludington Pumped Storage Plant Recognized for 40 Years of Service to Customers And Michigan |via = ] }}</ref>
As of August 2020, five of the six turbines had been successfully replaced; the project was expected to be completed in May or June 2021.<ref>{{Cite web |url = https://www.9and10news.com/2020/08/11/ludington-pumped-storage-facility-close-to-finishing-massive-upgrade/ |title = Ludington Pumped Storage Facility Close to Finishing Massive Upgrade |first = Eric |last = Lloyd |work = 9and10news.com |date = August 11, 2020 |access-date = December 10, 2020 }}</ref><ref>{{Cite web |url = https://www.shorelinemedia.net/ludington_daily_news/news/local/turbine-upgrade-project-delayed-at-ludington-pumped-storage-plant/article_19993fa1-fc35-554f-bebd-55ee05e2c641.html |title = Turbine upgrade project delayed at Ludington Pumped Storage Plant |first = David |last = Bossick |work = Ludington Daily News |date = October 29, 2020 |access-date = December 10, 2020 }}</ref> However claims of defective parts and timeline overruns led Consumers Power and Detroit Edison to sue the project contractor, Toshiba America in April 2022.<ref>{{cite news |url = https://mibiz.com/sections/energy/consumers-dte-sue-contractor-over-defective-work-project-delays-in-500m-ludington-pumped-storage-plant-upgrade |title = Consumers, DTE sue contractor over ‘defective work,’ project delays in $500M Ludington pumped storage plant upgrade |work = mibiz |first = Andy |last = Blaskowitz |date = April 22, 2022 }}</ref>
http://www.ludingtondailynews.com/news/55529-consumers-energy--detroit-edison-announce-800-million-upgrade-of-ludington-pumped-storage-facility|title=Consumers Energy , Detroit Edison announce $800 million upgrade of Ludington Pumped Storage Facility|publisher=Ludington Daily News|date=2011-02-07|accessdate=2011-02-08}}</ref> Plans for the upgrade include replacing all six of the plant's turbines, which would increase the plant's total generating capacity by 15 percent, and efficiency by 5 percent. Upon completion, the plant will produce enough power for a community of 1.65 million (a quarter million increase).<ref name="pr_newswire">{{Cite web
|url=http://www.prnewswire.com/news-releases/ludington-pumped-storage-plant-recognized-for-40-years-of-service-to-customers-and-michigan-216178261.html
|title=Ludington Pumped Storage Plant Recognized For 40 Years Of Service To Customers And Michigan
|publisher=]
}}</ref>


== See also == == See also ==
{{stack|{{Portal|Michigan|Water|Renewable energy}}}}

* ] * ]
* ]
* ], another large pumped-storage facility on the Great Lakes * ], another large pumped-storage facility on the Great Lakes
* ], Virginia; the largest pumped storage facility in the world until 2021


== References == == References ==
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== External links == == External links ==
*
*
{{authority control}}


]
*

{{Electricity generation}}

] ]
] ]
] ]
] ]
] ]
] ]
] ]
]
]

Latest revision as of 10:26, 14 September 2024

Dam in Ludington, Michigan
Ludington Pumped Storage Plant
Ludington Pumped Storage Power Plant is located in MichiganLudington Pumped Storage Power PlantLocation of Ludington Pumped Storage Plant in Michigan
CountryUnited States
LocationLudington, Michigan
Coordinates43°53′37″N 86°26′43″W / 43.89361°N 86.44528°W / 43.89361; -86.44528
PurposePower
StatusOperational
Construction beganJuly 1968
Opening date1973
Construction cost$327 million (1973)
Owner(s)Consumers Energy (51%)
Detroit Edison (49%)
Upper dam and spillways
Type of damEmbankment dam
Height (foundation)103 feet (31 m)
Length6 miles (9.7 km)
Width (crest)21 feet (6.4 m)
Upper reservoir
Total capacity82,860 acre-feet (102,210,000 m)
Active capacity52,171 acre-feet (64,352,000 m)
Inactive capacity30,689 acre-feet (37,854,000 m)
Surface area842 acres (341 ha)
Maximum length2.5 miles (4.0 km)
Maximum width1 mile (1.6 km)
Maximum water depth110 feet (34 m)
Lower reservoir
CreatesLake Michigan
Total capacity1,180 cubic miles (4,900 km)
Surface area22,404 square miles (58,030 km)
Maximum length307 miles (494 km)
Maximum width118 miles (190 km)
Normal elevation577 feet (176 m)
Power Station
Coordinates43°53′37″N 86°26′43″W / 43.89361°N 86.44528°W / 43.89361; -86.44528
Commission date1973
TypePumped-storage
Hydraulic head363 feet (111 m)
Pump-generators6 × 362 MW (455 MVA) Francis pump-turbines
Installed capacity2,172 MW
Overall efficiency70%
Storage capacity9 hours (19,548 MWh)
2016 generation-752 GW·h

The Ludington Pumped Storage Plant is a hydroelectric plant and reservoir in Ludington, Michigan. It was built between 1969 and 1973 at a cost of $315 million and is owned jointly by Consumers Energy and DTE Energy and operated by Consumers Energy. At the time of its construction, it was the largest pumped storage hydroelectric facility in the world.

Characteristics

Detail of the turbines when first constructed.

It consists of a reservoir 110 feet (34 m) deep, 2.5 miles (4.0 km) long, and one mile (1.6 km) wide which holds 27 billion US gallons (100 Gl) or 82859 acre-feet of water. The 1.3-square-mile (3.4 km) reservoir is located on the banks of Lake Michigan. Because impervious bedrock is more than 800 feet (240 m) below the reservoir, the builders had to line the reservoir with a layer of asphalt and clay to prevent water seeping into the ground.

The power plant consists of six reversible turbines that can each generate 312 megawatts of electricity for a total output of 1,872 megawatts. Water is delivered from the upper reservoir to the turbines by six penstocks each 1,100 feet (340 m) long that taper from 28 to 24 feet (8.5 to 7.3 m) in diameter.

At night, during low demand for electricity, the turbines run in reverse to pump water 363 feet (111 m) uphill from Lake Michigan into the reservoir. The plant takes advantage of the natural steep sand dune landform of eastern Lake Michigan. During periods of peak demand water is released to generate power. Electrical generation can begin within two minutes with peak electric output of 1872 MW achieved in under 30 minutes. Maximum water flow is over 33 million US gallons (120,000 m) per minute.

This process was designed to level the load of nearby nuclear power plants on the grid. It also replaces the need to build natural gas peak power plants used only during high demand. The Ludington Pumped Storage plant is connected to six 345-kV Transmission lines, all owned and maintained by METC, a subsidiary of ITC Holdings.

The project was given the 1973 award for "Outstanding Civil Engineering Achievement" by the American Society of Civil Engineers.

Upgrade

Consumers Energy discussed plans in 2008 to extend the life of the facility and upgrade the pumps to increase efficiency by up to 9%. Consumers Energy also planned to tap the wind power resources along the eastern Lake Michigan shore with wind farms. Because wind is an intermittent power source and may inconveniently deliver large amounts of power during periods of low electric demand, pumped storage facilities are desirable to have on the same grid with large-scale wind farms. The available pumped storage capacity, along with the wind characteristics, partly determine the maximum contribution wind power can make to the overall electricity use in a region.

Consumers Energy and Detroit Edison announced an $800 million upgrade on February 7, 2011. The six-year project would begin in 2013 and extend the plant's life by at least forty years and upgrade the generating capacity from 1,872 megawatts to 2,172 megawatts. Plans for the upgrade include replacing all six of the plant's turbines, which would increase the plant's total generating capacity by 15 percent, and efficiency by 5 percent. Upon completion, the plant will produce enough power for a community of 1.65 million (a quarter million increase). As of August 2020, five of the six turbines had been successfully replaced; the project was expected to be completed in May or June 2021. However claims of defective parts and timeline overruns led Consumers Power and Detroit Edison to sue the project contractor, Toshiba America in April 2022.

See also

References

  1. "Ludington Pumped Storage Upgrade & Overhaul" (PDF). Archived from the original (PDF) on December 5, 2017. Retrieved December 4, 2017.
  2. Browning, Edgar A. (January 29, 2017). "Looking Back: Ludington Pumped Storage Power Plant". Construction Equipment Guide (Northeast ed.). Retrieved December 4, 2017.
  3. Maclam, Doug (October 1, 2015). "Ludington Pumped Storage Plant Increases Efficiency to Provide Greater Grid Support". Power Magazine. Retrieved December 4, 2017.
  4. McCluskey, Michael (September 24, 2018). "Michigan utilities upgrade pumped storage plant ahead of renewable push". Energy News Network. Retrieved January 30, 2020.
  5. Ray, Matthew; Toro, Keith; Kaneda, Hironari; Hyuga, Takeshi (November 11, 2016). "Major Overhaul Boosts Performance at Ludington Pumped-Storage Plant". Hydro Review. Retrieved December 4, 2017.
  6. "Overhaul at Ludington - International Water Power". Water Power Magazine. International Water Power & Dam Construction. January 4, 2012. Retrieved December 4, 2017.
  7. "Ludington Pumped Storage". Consumers Energy. Archived from the original on October 23, 2013.
  8. "Past Outstanding Civil Engineering Achievement Awards". American Society of Civil Engineers. Archived from the original on October 10, 2008.
  9. ^ Alexander, Dave (April 12, 2008). "Shoreline generates interest in power". The Muskegon Chronicle. Retrieved October 3, 2008.
  10. "Consumers Energy, Detroit Edison announce $800 million upgrade of Ludington Pumped Storage Facility". Ludington Daily News. February 7, 2011. Retrieved February 8, 2011.
  11. "Ludington Pumped Storage Plant Recognized for 40 Years of Service to Customers And Michigan" (Press release) – via PR Newswire.
  12. Lloyd, Eric (August 11, 2020). "Ludington Pumped Storage Facility Close to Finishing Massive Upgrade". 9and10news.com. Retrieved December 10, 2020.
  13. Bossick, David (October 29, 2020). "Turbine upgrade project delayed at Ludington Pumped Storage Plant". Ludington Daily News. Retrieved December 10, 2020.
  14. Blaskowitz, Andy (April 22, 2022). "Consumers, DTE sue contractor over 'defective work,' project delays in $500M Ludington pumped storage plant upgrade". mibiz.

External links

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