Usage of existing power plants as synchronous condenser

Deecke, A.; Kawecki, Robert

doi:10.15199/48.2015.10.12

Cited by 9 publications

(2 citation statements)

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“…Coal plant repurposing [8,9,18] is a new business model that requires more attention. It is not a "new" technology per se as it is more about packaging technologies like converting existing generators into synchronous condensers [19] and using the site for solar PV, BESS, thermal storage, biomass etc. As a recent analysis [20] shows a repurposing project (in India) can pay as much as five times of the cost of decommissioning.…”

Section: Key Literature On Coal Vs Renewablesmentioning

confidence: 99%

ACT on RE+FLEX: Accelerating Coal Transition Through Repurposing Coal Plants Into Renewable and Flexibility Centers

et al. 2021

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Decarbonizing the power sector forms a critical part of the global combat against climate change. This requires inter alia retirement of the global coal power plant fleet of 2,100 GW. Although a significant part of this capacity is aging, there are complex issues that need to be addressed including the economic viability of existing coal plants in some countries relative to renewable projects and barriers to exit of coal. We have used detailed power plant level operational cost data for ten developing countries with significant share of coal and compared these with levelized cost of renewables, to demonstrate that competitiveness of coal varies significantly across different geographies. Countries like India where renewable projects have been highly competitive and there is an aging fleet of coal plants many of which are far away from mines, are already highly uncompetitive. On the other hand, countries like South Africa that have relatively inexpensive coal plants, but the average cost of renewable projects have not yet dropped sufficiently (as of 2020), will require special efforts to phase out coal completely beyond plants that have reached, or gone well past their technical life. Accelerated retirement of coal would require a new business model that allows repurposing some of these sites for alternative usage including generation from renewables, conversion of the incumbent generator into a synchronous condenser coupled with a fly wheel to provide reactive power and inertia; and installation of energy storage systems. As a repurposed coal plant for energy related activities can retain part of the workforce, it can also address some of the complex social issues. In order to develop a comprehensive repurposing program a t a national level, the process needs to follow a leastcost planning methodology to identify prospective coal plant candidates for repurposing and then undertake a cost-benefit analysis of individual projects. We have demonstrated this methodology using a case study for Morocco.

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Section: Key Literature On Coal Vs Renewablesmentioning

confidence: 99%

ACT on RE+FLEX: Accelerating Coal Transition Through Repurposing Coal Plants Into Renewable and Flexibility Centers

et al. 2021

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“…On the grid stability front, repurposing coal plants may offer significant benefits over decommissioning (Chattopadhyay, Tavoulareas, and Goyal 2019). For instance, repurposing coal plant equipment (e.g., the turbogenerator) into a SynCON allows retaining a part of reactive power service for voltage control originally provided by the coal plant (Deecke and Kawecki 2015). Similarly, utilizing a coal plant site for installation of battery energy storage system (BESS) helps in the delivery of essential frequency control ancillary services such as faster ramping and operating reserves (NREL 2019).…”

Section: : Coal Plant Decommissioning and Repurposingmentioning

confidence: 99%

Coal Plant Repurposing for Ageing Coal Fleets in Developing Countries

2021

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Integration of Onshore Wind Farms to a Weak AC Grid Interfacing LCC HVDC Transmission

Chaudhuri

2019

Integrating Wind Energy to Weak Power Grids Using High Voltage Direct Current Technology

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Usage of existing power plants as synchronous condenser

Cited by 9 publications

References 0 publications

ACT on RE+FLEX: Accelerating Coal Transition Through Repurposing Coal Plants Into Renewable and Flexibility Centers

ACT on RE+FLEX: Accelerating Coal Transition Through Repurposing Coal Plants Into Renewable and Flexibility Centers

Coal Plant Repurposing for Ageing Coal Fleets in Developing Countries

Integration of Onshore Wind Farms to a Weak AC Grid Interfacing LCC HVDC Transmission

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