Jenpeg Generating Station - Revision history

Rbernier at 14:36, 1 May 2016

2016-05-01T14:36:48Z

← Older revision		Revision as of 09:36, 1 May 2016
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	In 2004 the former 4-66 kV Substation and 4-12kV Setup Station was investigated and subsequently salvaged in 2006. In November 2010 the station areas underwent remediation, with 77.4 tonnes of impacted soil excavated and removed from the Jenpeg area. Groundwater wells in this area were decommissioned in 2012. Manitoba Hydro is completing subsurface investigations to decommission the current waste disposal ground, and a waste transfer station will operate in its place in the future.		In 2004 the former 4-66 kV Substation and 4-12kV Setup Station was investigated and subsequently salvaged in 2006. In November 2010 the station areas underwent remediation, with 77.4 tonnes of impacted soil excavated and removed from the Jenpeg area. Groundwater wells in this area were decommissioned in 2012. Manitoba Hydro is completing subsurface investigations to decommission the current waste disposal ground, and a waste transfer station will operate in its place in the future.

			==References==
			Manitoba Hydro & the Province of Manitoba, December 2015, ''Regional Cumulative Effects Assessment Phase II: Part II Hydroelectric Development Project Description in the Region of Interest''. Retrieved April 1 2016 from, https://www.hydro.mb.ca/regulatory_affairs/rcea/pdf/rcea_phase2_part_ii_hydroelectric_development_project_description.pdf

Rbernier at 04:38, 11 April 2016

2016-04-11T04:38:07Z

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	The Jenpeg Generating Station (GS) is located on the West Channel of the upper Nelson River where the channel flows into Cross Lake. It is approximately 12 mi (19 km) southwest of the community of Cross Lake and 325 mi (525 km) north of the City of Winnipeg.		The Jenpeg Generating Station (GS) is located on the West Channel of the upper Nelson River where the channel flows into Cross Lake. It is approximately 12 mi (19 km) southwest of the community of Cross Lake and 325 mi (525 km) north of the City of Winnipeg.

			[[File:Jenpeg Map 1.jpg\|thumb\|center\|upright=3.0\|Map 1: Jenpeg Generating Station General Arrangement]]

	[[File:Jenpeg 7.jpg\|thumb\|center\|upright=3.0\|Map 1: Jenpeg Generating Station General Arrangement]]



	The Jenpeg GS is one of the major components of LWR and, being located on the West Channel, controls most of the outflow from Lake Winnipeg (the East Channel of the upper Nelson River remains unregulated). Originally envisioned to be exclusively a control structure only, a decision was made during the final planning of LWR to add generating units at the structure. Descriptions of LWR and associated supporting infrastructure are provided in [[Lake Winnipeg Regulation]].		The Jenpeg GS is one of the major components of LWR and, being located on the West Channel, controls most of the outflow from Lake Winnipeg (the East Channel of the upper Nelson River remains unregulated). Originally envisioned to be exclusively a control structure only, a decision was made during the final planning of LWR to add generating units at the structure. Descriptions of LWR and associated supporting infrastructure are provided in [[Lake Winnipeg Regulation]].

	==~~Generating Station~~ Components==		==Project Components==
	===Principal Works===		===Principal Works===
	The station spans a total of 0.4 mi (0.6 km) across the West Channel and consists of a close-coupled intake/powerhouse with six units, an earthfill dam, and a five-bay gated spillway (Photo 1; Map 1).		The station spans a total of 0.4 mi (0.6 km) across the West Channel and consists of a close-coupled intake/powerhouse with six units, an earthfill dam, and a five-bay gated spillway (Photo 1; Map 1).


	[[File:Jenpeg 1.jpg\|thumb\|center\|upright=3.0\|Photo 1: Jenpeg Generating Station General Arrangement]]		[[File:Jenpeg 1.jpg\|thumb\|center\|upright=3.0\|Photo 1: Jenpeg Generating Station General Arrangement]]

			===Project Data===
	==Project Data==
	* Turbine generator units:		* Turbine generator units:
	** Type: 6 horizontal axis bulb propeller turbines		** Type: 6 horizontal axis bulb propeller turbines
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	** Normal minimum operating forebay elevation: 702.0 ft (213.969 m)		** Normal minimum operating forebay elevation: 702.0 ft (213.969 m)
	** Flooded area: approximately 17.6 mi2 (45.6 km2)		** Flooded area: approximately 17.6 mi2 (45.6 km2)


	The Jenpeg GS was the first generating station in North America to use bulb-type turbine generators. This design reduces the depth of excavation required into the underlying bedrock. See Figure 1 below for a cross sectional view through the powerhouse.		The Jenpeg GS was the first generating station in North America to use bulb-type turbine generators. This design reduces the depth of excavation required into the underlying bedrock. See Figure 1 below for a cross sectional view through the powerhouse.

	The main dam extends across the west channel of the Nelson River, diverting water to the Jenpeg powerhouse and a spillway.		The main dam extends across the west channel of the Nelson River, diverting water to the Jenpeg powerhouse and a spillway.


	[[File:Jenpeg 3.jpg\|thumb\|center\|upright=3.0\|Figure 1: Cross Sectional View Through Jenpeg Powerhouse]]		[[File:Jenpeg 3.jpg\|thumb\|center\|upright=3.0\|Figure 1: Cross Sectional View Through Jenpeg Powerhouse]]

			===Supporting Infrastructure===
	==Infrastructure ~~Supporting Construction~~==
	Main access to the site was achieved by extending PR 373 to the Jenpeg site with construction beginning in 1972. At a point on the Ponton-Thompson road (now PTH 6) approximately two miles (3.2 km) southwest of Pipun, a forestry road to Sipiwesk Lake was in place. The first 15 mi (24.1 km) of this road was up-graded and a new permanent gravel road was extended south-easterly for approximately 35 mi (56 km) to the Jenpeg site. The road was designed to carry construction traffic including the heavy loads associated with the turbine and generator components. In addition there was a 2,500 ft (762 m) long paved airstrip constructed during the project for use as required.		Main access to the site was achieved by extending PR 373 to the Jenpeg site with construction beginning in 1972. At a point on the Ponton-Thompson road (now PTH 6) approximately two miles (3.2 km) southwest of Pipun, a forestry road to Sipiwesk Lake was in place. The first 15 mi (24.1 km) of this road was up-graded and a new permanent gravel road was extended south-easterly for approximately 35 mi (56 km) to the Jenpeg site. The road was designed to carry construction traffic including the heavy loads associated with the turbine and generator components. In addition there was a 2,500 ft (762 m) long paved airstrip constructed during the project for use as required.

	~~A temporary construction camp and work areas were established near~~ the ~~project site. Construction power was provided by pre-building~~ the 230 kV ~~transmission~~ line (J30P) ~~from~~ the Ponton Substation to the Jenpeg ~~Switching Station that would ultimately be used to transmit power~~ to the ~~transmission grid once the project was completed~~.		===Generation Outlet Transmission===
			The electricity generated at the Jenpeg GS is transmitted to the Jenpeg Switching Station adjacent to the Jenpeg GS and then is transmitted along a 230 kV line (J30P) to the Ponton Substation. Additional transmission lines connect the Jenpeg GS to the nearby communities of Cross Lake and Norway House.

	==Construction==		==Construction==
			===Principal Works===
	Excavation of the spillway and powerhouse channels through solid granite bedrock in the dry began in 1972. These channels were excavated leaving a portion of the rock along the riverbank as a plug to prevent the river from flowing in. The rock plug was later removed and the river was diverted into the powerhouse and spillway channels. The first concrete was poured in 1973 and all six of the units were in service in 1979 (Photo 2).		Excavation of the spillway and powerhouse channels through solid granite bedrock in the dry began in 1972. These channels were excavated leaving a portion of the rock along the riverbank as a plug to prevent the river from flowing in. The rock plug was later removed and the river was diverted into the powerhouse and spillway channels. The first concrete was poured in 1973 and all six of the units were in service in 1979 (Photo 2).

	Most of the rock and impervious construction materials came from local borrow areas, while the granular materials were hauled from the Whiskey Jack deposit approximately 8 mi (13 km) east of the construction site. The construction workforce lived in camp for several weeks at a time and traveled to their homes during their days off.		Most of the rock and impervious construction materials came from local borrow areas, while the granular materials were hauled from the Whiskey Jack deposit approximately 8 mi (13 km) east of the construction site. The construction workforce lived in camp for several weeks at a time and traveled to their homes during their days off.


	[[File:Jenpeg 4.jpg\|thumb\|center\|upright=2.0\|Photo 2: Jenpeg Generating Station following Construction, 1979]]		[[File:Jenpeg 4.jpg\|thumb\|center\|upright=2.0\|Photo 2: Jenpeg Generating Station following Construction, 1979]]

			===Construction Infrastructure===
			A temporary construction camp and work areas were established near the project site. Construction power was provided by pre-building the 230 kV transmission line (J30P) from the Ponton Substation to the Jenpeg Switching Station that would ultimately be used to transmit power to the transmission grid once the project was completed.

	==Mitigation Measures==		==Mitigation Measures==
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	Accommodation: The workers stay on site in a 54 person staffhouse, completed in 1984 and located upstream of the station (Photo 3).		Accommodation: The workers stay on site in a 54 person staffhouse, completed in 1984 and located upstream of the station (Photo 3).


	[[File:Jenpeg 5.jpg\|thumb\|center\|upright=2.0\|Photo 3: Jenpeg Generating Station - Staffhouse in Background, 1998]]		[[File:Jenpeg 5.jpg\|thumb\|center\|upright=2.0\|Photo 3: Jenpeg Generating Station - Staffhouse in Background, 1998]]


	~~Waste Handling: Waste water is treated at a local lagoon while solid waste is hauled to the City of Winnipeg waste disposal grounds.~~
	Public Safety: The Jenpeg GS has a portage around the site and the following public safety features:		Public Safety: The Jenpeg GS has a portage around the site and the following public safety features:

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	** notifying local radio stations of water levels in the area; and		** notifying local radio stations of water levels in the area; and
	** removing trash and debris from the river and ice boom.		** removing trash and debris from the river and ice boom.


	Water Regime: The Jenpeg GS functions as both a generating station and a control structure. The station is operated primarily to schedule Lake Winnipeg outflows and generation along the lower Nelson River with seasonal load requirements. The Jenpeg GS produces energy using the outflow targets set by LWR.		Water Regime: The Jenpeg GS functions as both a generating station and a control structure. The station is operated primarily to schedule Lake Winnipeg outflows and generation along the lower Nelson River with seasonal load requirements. The Jenpeg GS produces energy using the outflow targets set by LWR.
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	[[File:Jenpeg 6.jpg\|thumb\|center\|upright=2.0\|Photo 4: Jenpeg Generating Station – Upstream Ice Formation with an Ice Boom]]		[[File:Jenpeg 6.jpg\|thumb\|center\|upright=2.0\|Photo 4: Jenpeg Generating Station – Upstream Ice Formation with an Ice Boom]]


	Licence: Manitoba Hydro operates the Jenpeg GS in accordance with a Province of Manitoba Water Power Act License. See the Manitoba Government Water Power Licensing website for further details at, http://www.gov.mb.ca/waterstewardship/licensing/water_power_licensing.html.		Licence: Manitoba Hydro operates the Jenpeg GS in accordance with a Province of Manitoba Water Power Act License. See the Manitoba Government Water Power Licensing website for further details at, http://www.gov.mb.ca/waterstewardship/licensing/water_power_licensing.html.

	~~==Generation Outlet Transmission==~~
	The electricity generated at the Jenpeg GS is transmitted to the Jenpeg Switching Station adjacent to the Jenpeg GS and then is transmitted along a 230 kV line (J30P) to the Ponton Substation. Additional transmission lines connect the Jenpeg GS to the nearby communities of Cross Lake and Norway House.

	==Rehabilitation==		==Rehabilitation==

Rbernier: /* Infrastructure Supporting Construction */

2016-04-09T19:56:34Z

Infrastructure Supporting Construction

← Older revision		Revision as of 14:56, 9 April 2016
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	Main access to the site was achieved by extending PR 373 to the Jenpeg site with construction beginning in 1972. At a point on the Ponton-Thompson road (now PTH 6) approximately two miles (3.2 km) southwest of Pipun, a forestry road to Sipiwesk Lake was in place. The first 15 mi (24.1 km) of this road was up-graded and a new permanent gravel road was extended south-easterly for approximately 35 mi (56 km) to the Jenpeg site. The road was designed to carry construction traffic including the heavy loads associated with the turbine and generator components. In addition there was a 2,500 ft (762 m) long paved airstrip constructed during the project for use as required.		Main access to the site was achieved by extending PR 373 to the Jenpeg site with construction beginning in 1972. At a point on the Ponton-Thompson road (now PTH 6) approximately two miles (3.2 km) southwest of Pipun, a forestry road to Sipiwesk Lake was in place. The first 15 mi (24.1 km) of this road was up-graded and a new permanent gravel road was extended south-easterly for approximately 35 mi (56 km) to the Jenpeg site. The road was designed to carry construction traffic including the heavy loads associated with the turbine and generator components. In addition there was a 2,500 ft (762 m) long paved airstrip constructed during the project for use as required.

	A temporary construction camp and work areas were established near the project site. Construction power was provided by pre-building the 230 kV transmission line (J30P) from the Ponton Substation to the Jenpeg Switching Station that would ultimately be used to transmit power to the transmission grid once the project was completed~~. Solid waste was disposed of at local solid waste disposal sites and waste water was treated at a local lagoon~~.		A temporary construction camp and work areas were established near the project site. Construction power was provided by pre-building the 230 kV transmission line (J30P) from the Ponton Substation to the Jenpeg Switching Station that would ultimately be used to transmit power to the transmission grid once the project was completed.

	==Construction==		==Construction==

Rbernier at 19:55, 9 April 2016

2016-04-09T19:55:03Z

← Older revision		Revision as of 14:55, 9 April 2016
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	==Location==		==Location==
	The Jenpeg Generating Station (GS) is located on the West Channel of the upper Nelson River where the channel flows into Cross Lake. It is approximately 12 mi (19 km) southwest of the community of Cross Lake and 325 mi (525 km) north of the City of Winnipeg ~~(Map 1.2.3-1 in Chapter 1.2, Overview of the Phase I and Phase II Reports)~~.		The Jenpeg Generating Station (GS) is located on the West Channel of the upper Nelson River where the channel flows into Cross Lake. It is approximately 12 mi (19 km) southwest of the community of Cross Lake and 325 mi (525 km) north of the City of Winnipeg.


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	The Jenpeg GS is one of the major components of LWR and, being located on the West Channel, controls most of the outflow from Lake Winnipeg (the East Channel of the upper Nelson River remains unregulated). Originally envisioned to be exclusively a control structure only, a decision was made during the final planning of LWR to add generating units at the structure. Descriptions of LWR and associated supporting infrastructure are provided in Lake Winnipeg ~~Project Description (Appendix 2D)~~.		The Jenpeg GS is one of the major components of LWR and, being located on the West Channel, controls most of the outflow from Lake Winnipeg (the East Channel of the upper Nelson River remains unregulated). Originally envisioned to be exclusively a control structure only, a decision was made during the final planning of LWR to add generating units at the structure. Descriptions of LWR and associated supporting infrastructure are provided in [[Lake Winnipeg Regulation]].

	==Generating Station Components==		==Generating Station Components==
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	Excavation of the spillway and powerhouse channels through solid granite bedrock in the dry began in 1972. These channels were excavated leaving a portion of the rock along the riverbank as a plug to prevent the river from flowing in. The rock plug was later removed and the river was diverted into the powerhouse and spillway channels. The first concrete was poured in 1973 and all six of the units were in service in 1979 (Photo 2).		Excavation of the spillway and powerhouse channels through solid granite bedrock in the dry began in 1972. These channels were excavated leaving a portion of the rock along the riverbank as a plug to prevent the river from flowing in. The rock plug was later removed and the river was diverted into the powerhouse and spillway channels. The first concrete was poured in 1973 and all six of the units were in service in 1979 (Photo 2).

	Most of the rock and impervious construction materials came from local borrow areas, while the granular materials were hauled from the Whiskey Jack deposit approximately 8 mi (13 km) east of the construction site.		Most of the rock and impervious construction materials came from local borrow areas, while the granular materials were hauled from the Whiskey Jack deposit approximately 8 mi (13 km) east of the construction site. The construction workforce lived in camp for several weeks at a time and traveled to their homes during their days off.


			[[File:Jenpeg 4.jpg\|thumb\|center\|upright=2.0\|Photo 2: Jenpeg Generating Station following Construction, 1979]]

	~~The construction workforce lived in camp for several weeks at a time and traveled to their homes during their days off.~~

	==Mitigation Measures==		==Mitigation Measures==
	The Cross Lake Weir was developed to lessen the effects of LWR on Cross Lake by increasing the average water level and reducing the range of water levels. Construction of the weir was completed in 1991 and modified the lake’s main outlet channels by filling in a portion of the Centre Channel and excavating a portion of the East Channel. Also see [[Lake Winnipeg Regulation]].		The Cross Lake Weir was developed to lessen the effects of LWR on Cross Lake by increasing the average water level and reducing the range of water levels. Construction of the weir was completed in 1991 and modified the lake’s main outlet channels by filling in a portion of the Centre Channel and excavating a portion of the East Channel. Also see [[Lake Winnipeg Regulation]].


	~~[[File:Jenpeg 4.jpg\|thumb\|center\|upright=2.0\|Photo 2: Jenpeg Generating Station following Construction, 1979]]~~


	==Operations==		==Operations==
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	In 1993 ten areas were investigated by Manitoba Hydro for potential remediation activities, including former storage areas, waste disposal grounds, and temporary sites . Several areas were remediated in 2000. In 2001 Manitoba Conservation inspected the ten sites and indicated that they could not find evidence of any outstanding concerns, and that remediation or further testing of these areas was not required at this time.		In 1993 ten areas were investigated by Manitoba Hydro for potential remediation activities, including former storage areas, waste disposal grounds, and temporary sites . Several areas were remediated in 2000. In 2001 Manitoba Conservation inspected the ten sites and indicated that they could not find evidence of any outstanding concerns, and that remediation or further testing of these areas was not required at this time.

	In 2004 the former 4-66 kV Substation and 4-12kV Setup Station was investigated and subsequently salvaged in 2006. In November 2010 the station areas underwent remediation, with 77.4 tonnes of impacted soil excavated and removed from the Jenpeg area. Groundwater wells in this area were decommissioned in 2012. Manitoba Hydro is completing subsurface investigations to decommission the current waste disposal ground, and a waste transfer station will operate in its place in the future.		In 2004 the former 4-66 kV Substation and 4-12kV Setup Station was investigated and subsequently salvaged in 2006. In November 2010 the station areas underwent remediation, with 77.4 tonnes of impacted soil excavated and removed from the Jenpeg area. Groundwater wells in this area were decommissioned in 2012. Manitoba Hydro is completing subsurface investigations to decommission the current waste disposal ground, and a waste transfer station will operate in its place in the future.

	~~[[File:Jenpeg 7.jpg\|400px]]~~

Rbernier at 19:50, 9 April 2016

2016-04-09T19:50:00Z

← Older revision		Revision as of 14:50, 9 April 2016
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			For a high level overview of this and other hydro projects see [[Hydroelectric Development in Northern Manitoba]].

	==Background==		==Background==
	Lake Winnipeg Regulation (LWR) was announced by the Government of Manitoba in 1970 and developed by Manitoba Hydro to achieve two key objectives: to reduce shoreline flooding on Lake Winnipeg, and to support hydroelectric generation to meet growing demand in Manitoba. The project is a network of channels and structures that are used to control the outflow of water from the lake and allow higher outflow during flood conditions. During flood conditions it increases the outflow capability of the lake by approximately 50% more than would otherwise occur naturally. LWR went into operation in 1976.		Lake Winnipeg Regulation (LWR) was announced by the Government of Manitoba in 1970 and developed by Manitoba Hydro to achieve two key objectives: to reduce shoreline flooding on Lake Winnipeg, and to support hydroelectric generation to meet growing demand in Manitoba. The project is a network of channels and structures that are used to control the outflow of water from the lake and allow higher outflow during flood conditions. During flood conditions it increases the outflow capability of the lake by approximately 50% more than would otherwise occur naturally. LWR went into operation in 1976.
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	[[File:Jenpeg 2.jpg\|thumb\|center\|upright=3.0\|~~Photo~~ 1: Jenpeg Generating Station General Arrangement]]		[[File:Jenpeg 7.jpg\|thumb\|center\|upright=3.0\|Map 1: Jenpeg Generating Station General Arrangement]]


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	[[File:Jenpeg 1.jpg\|thumb\|center\|upright=3.0\|~~Map~~ 1: Jenpeg Generating Station General Arrangement]]		[[File:Jenpeg 1.jpg\|thumb\|center\|upright=3.0\|Photo 1: Jenpeg Generating Station General Arrangement]]

Rbernier at 19:42, 9 April 2016

2016-04-09T19:42:39Z

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Rbernier at 01:56, 9 April 2016

2016-04-09T01:56:36Z

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Abrawerman: Created page with " - Jenpeg Generating Station"

2016-04-07T18:44:04Z

Created page with " - Jenpeg Generating Station"

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- Jenpeg Generating Station

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	- Jenpeg ~~Generating Station~~		[[File:Jenpeg 2.jpg\|400px]]
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