Lingan Generating Station

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Lingan Generating Station
Lingan Generating Station.jpg
The Lingan Generating Station viewed from the north
Lingan Generating Station
Lingan Generating Station, Nova Scotia
CountryCanada
Location Lingan, Nova Scotia
Coordinates 46°14′08″N60°02′21″W / 46.235541°N 60.039270°W / 46.235541; -60.039270
StatusOperational
Construction began1977
Commission date 1 November 1979
Construction cost$400,000,000 [1]
Owner Nova Scotia Power
Employees120 [2]
Thermal power station
Primary fuel Coal
Secondary fuel Number 6 fuel oil
Power generation
Units operational4
Nameplate capacity 620  MW
Annual net output 2,288 GWh (2014) [3]
External links
Website https://www.nspower.ca
Commons Related media on Commons
[ edit on Wikidata]

The Lingan Generating Station is a 620 MW Canadian coal-fired electrical generating station located in the community of Lingan in Nova Scotia's Cape Breton Regional Municipality. Lingan is operated by Nova Scotia Power Inc. and is their largest generating station.

Contents

Lingan Generating Station rests on the shores of the Cabot Strait, open to Indian Bay, approximately 1.6 km (0.99 mi) south-west of the headland named North Head and 0.7 km (0.43 mi) north of the headland named Little Head. Its civic address is 2599 Hinchey Avenue, Lingan, NS.

A thermal generating station, Lingan was opened by then-provincial Crown corporation Nova Scotia Power Corporation on November 1, 1979 at the height of the 1970s oil crisis. It was designed to burn bituminous coal mined by the Cape Breton Development Corporation (DEVCO) at the nearby Lingan Colliery and the adjacent Phalen Colliery as a means of reducing Nova Scotia's reliance of foreign oil for electrical generation.

History

In the years following World War II, Nova Scotia, in common with many other areas of the world, turned to oil to fire its generating stations to such an extent that 70% of its electricity was then generated from oil. Formation of the OPEC cartel in 1973 brought an end to low-priced oil and the price of electricity produced from burning oil increased dramatically. Nova Scotia's solution to the international oil crisis was to exploit a provincial natural resource, coal. [1]

Technical characteristics

The Lingan Generating Station consists of four 150 MW units commissioned between 1979 and 1984. The station burns bituminous coal and small amounts of petroleum coke in a variety of blends at each unit. [4] The turbines and electric generators were manufactured by Toshiba Energy Systems & Solutions Corporation. Unit 1 was commissioned in 1979, Unit 2 in 1980, Unit 3 in 1983, and Unit 4 in 1984. [3] [5] The capacities of the individual units average at 153 MW each, and range between 148 MW at Lingan 2 to 157 MW at Lingan 4. All units have over-fire air to control NOx and cold-side electrostatic precipitators to remove fly ash from the exhaust. As of 2010 there was no SO2, control. Fly ash is handled dry and bottom ash is handled wet. There are two 152 m (499 ft) chimneys for exhaust gas. [2] These chimneys are tied with those at Tufts Cove Generating Station and Trenton Generating Station as the tallest structures in Nova Scotia, and tied as the 27th tallest in Canada. The plant uses sea water for cooling, from the adjacent Indian Bay. [5]

The plant consumes 1.5 million tonnes of coal per year and currently generates approximately twenty-five percent of the province's electricity, while producing roughly fifty percent of the province's air pollution, including hydrochloric acid, sulphuric acid, hexachlorobenzene and mercury. [6] Emissions in the form of particulates are a frequent source of pollution complaints in the neighbourhood and region.

2001 shut down of local coal mines

Until the 2001 shut down of coal production by DEVCO, Lingan was supplied almost exclusively with locally mined coal from the Sydney Coal Field. Following closure of its mines, Nova Scotia Power purchased the federal Crown corporation's surface assets, including shipping piers on Sydney Harbour and the Devco Railway which was used to haul coal to the Lingan Generating Station. Nova Scotia Power subcontracted with the Quebec Railway Corporation to operate this rail line as the Sydney Coal Railway. In order to meet emissions standards, the company now imports coal containing fewer pollutants from the United States and South America, which is hauled from the Port of Sydney by the SCR to the generating station.

Lingan Generating Station 20161001 Lingan Generating Station Aerial 2.jpg
Lingan Generating Station

2005 Upgrade and Scrubbers

In 2005, Nova Scotia Power announced a $100 million upgrade for the Lingan Generating Station, including the installation of a scrubber for flue gas desulphurization (FGD) and low nitrogen oxide burners. The ‘Low-NOx’ combustion systems help prevent the creation of nitrogen oxides with a resulting reduction in NOx emissions of about 40 per cent. [7] The scrubbers were installed from 2006 to 2008 on all four units. [8] At the same time, activated carbon injection was added to all the units to remove mercury from flue gas. [4]

2015 renovations

In 2015 Nova Scotia Power spent $15 million to give one of its four coal fired generators a major overhaul. The work involved completely tearing apart the turbine and the generator and then refurbishing and replacing numerous components as part of regular maintenance. Regularly about 120 people work at the Lingan power plant. About 130 additional workers were hired to help with the upgrades, with about 50 of those workers outside contractors. [9]

1994 Near collision

On April 14, 1994, a courier flight originating from Moncton and destined for Sydney Airport had a near collision event with the power plant. Witnesses reported that the plane had nearly struck the building on its approach to the airport. An investigation into the incidence later confirmed that the plane had dropped to 140 feet agl and came within 50 feet of the structure while traveling at over 300 mph.

The Transportation Safety Board of Canada (TSB) determined that the crew did not properly plan and fly their approach to the Sydney Airport, which resulted in a near collision with the Lingan power generating plant. Contributing factors to this occurrence were the flight crew's complacent attitude, their loss of situational awareness, their decision to continue an unstabilized approach, and the controller's lack of compliance with the radar vectoring procedures outlined in the Air Traffic Control (ATC) Manual of Operations (MANOPS). [10]

2012 Reduced operation and conversion

Since 2012, the utility has been shutting down two of Lingan's generators during the summer months, due to lower residential and industrial demand, increased renewable energy use and to meet environmental requirements. Nova Scotia Power is also looking at converting the generating station to use heavy fuel oil after the current generators are closed in 2030. [11]

See also

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References

  1. 1 2 Kee, Fred. "Electric Utilities across Canada" (PDF). IEEE Canada. Institute of Electrical and Electronics Engineers Canada. Retrieved 10 April 2020.
  2. 1 2 "Company/Facility information: Nova Scotia Power Incorporated/Lingan Generating Station (2017)". NPRI Data Search - Detailed Facility Information. Environment and Climate Change Canada. 13 September 2018. Retrieved 10 April 2020.
  3. 1 2 Erin Flanagan; Benjamin Israël (November 2016). "Out with the coal, in with the new" (PDF). Metcalf Foundation. The Pembina Institute. p. 5. Retrieved 10 April 2020.
  4. 1 2 Kralovic, Paul. "North American Natural Gas Market Dynamics: Coal-fired Generation in North America – A Review" (PDF). Canadian Energy Research Institute. p. 28. Retrieved 10 April 2020.
  5. 1 2 "Lingan Coal Generating Station, Canada". Global Energy Observatory (GEO). Retrieved 10 April 2020.
  6. ↑ Tanya Collier MacDonald, "Lingan Plant Province's Top Polluter", Cape Breton Post September 24, 2003 (via Safe cleanup.com)
  7. ↑ "How We Make Electricity, Coal". Nova Scotia Power. Retrieved 6 October 2024.
  8. ↑ "How We Make Electricity". Nova Scotia Power. Emera. Retrieved 10 April 2020.
  9. ↑ "Nova Scotia Power puts $15M into Cape Breton power plant". CBC/Radio-Canada. CBC News. 1 April 2015. Retrieved 10 April 2020.
  10. ↑ "Aviation Investigation Report A94A0078". Transportation Safety Board of Canada. Government of Canada. 14 April 1994. Retrieved 10 April 2020.
  11. ↑ Withers, Paul (4 Jul 2023). "Nova Scotia Power plans to burn heavy fuel oil at phased-out coal plants". CBC News. Retrieved 3 August 2024.
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