Extending the Envelope of Demand Response Provision though Variable Speed Pumps

Menke, Ruben; Abraham, Edo; Parpas, Panos; Stoianov, Ivan

doi:10.1016/j.proeng.2017.03.274

Cited by 29 publications

(22 citation statements)

References 21 publications

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“…Some energy‐saving opportunities can reduce the magnitude of curtailable load because they generally reduce the baseline electricity demand (Kiliccote et al, 2016). However, energy efficiency advancements may have a positive impact (for example, installing controllable VSD pumps by continuously adjusting the speed of the motor to water flow rates (R. Menke, Abraham, Parpas, & Stoianov, 2017) or a negative impact (for example, replacing oversized pumps with smaller ones (Guerrini et al, 2017) on operational flexibility of the system, depending on the measure. DR and energy efficiency goals often align in VSD pumping systems.…”

Section: Other Demand‐side Management Opportunities In the Water Sectormentioning

confidence: 99%

Leveraging thewater‐energynexus to derive benefits for the electric grid throughdemand‐sidemanagement in the water supply and wastewater sectors

et al. 2021

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Leveraging the potential flexibility of large electrical loads has become an attractive option for maintaining grid reliability, especially in electric grids with high penetrations of variable renewable energy. The water sector is a particularly attractive option for demand‐side flexibility due to its vast water storage infrastructure, large interruptible pumping loads, and energy generation opportunities. Shifting the timing of water supply and wastewater utility operations can reduce peak load and temporally align energy‐consuming activities with periods of cheap electricity prices and/or high renewable energy generation. This paper presents a general overview of demand‐side management strategies in water and wastewater systems, focusing primarily on demand‐response measures. We find that while there is consensus in the literature about the potential for water systems to provide flexible demand‐side management services, there is a need for developing comprehensive water‐energy models to examine the value of load management as a source of revenue for water utilities and as a source of flexibility for the electric grid. More experimental studies and simulation efforts are also needed to address the technical complexities and water quality concerns associated with interrupting water and wastewater utility operations. This article is categorized under: Engineering Water > Sustainable Engineering of Water Engineering Water > Planning Water

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Section: Other Demand‐side Management Opportunities In the Water Sectormentioning

confidence: 99%

Leveraging thewater‐energynexus to derive benefits for the electric grid throughdemand‐sidemanagement in the water supply and wastewater sectors

et al. 2021

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“…For example, [66] studied only optimal network flow, [67] the economic dispatch, and [68] the unit commitment problem for a combined water, power, and co-production facilities. Other approaches studied the demand response capabilities of water distribution systems while exploiting key water distribution features such as variable speed pumps to maximize returns and reduce consumption [69][70][71][72]. Due to a lack of generic techniques, most of these studies are neither generally extensible nor applicable to other case-study geographies.…”

Section: Literature Gapmentioning

confidence: 99%

An enterprise control methodology for the techno-economic assessment of the energy water nexus

Muhanji

Farid

2020

Applied Energy

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In recent years, the energy-water nexus literature has recognized that the electricity and water infrastructure that enable the production, distribution, and consumption of these two precious commodities is fundamentally intertwined.Electric power is used to produce, treat, distribute, and recycle water while water is used to generate and consume electricity. In the meantime, significant attention has been given to renewable energy integration within the context of global climate change. While these two issues may seem unrelated, their resolution is potentially synergistic in that renewable energy technologies not only present low CO 2 emissions but also low water-intensities. Furthermore, because water is readily stored, it has the potential to act as a flexible energy resource on both the supply as well as the demand-side of the electricity grid. Despite these synergies, the renewable energy integration and energy-water nexus literature have yet to methodologically converge to systematically address potential synergies. This paper advances an enterprise control methodology as a means of assessing the techno-economic performance of the energy water nexus.The enterprise control methodology has been developed in recent years to advance the methodological state of the art of renewable energy integration studies and used recently to carry out a full-scale study for the Independent System Operator (ISO) New England system. The methodology quantifies day-ahead and real-time energy market production costs, dispatched energy mixes, required operating reserves, levels of curtailment, and grid imbalances. This energywater nexus methodological extension now includes flexible water-energy resources within the grid's energy resource portfolio and quantifies the amounts of water withdrawn and consumed. The simulation methodology is demonstrated on a modified version of the RTS-96 (RTS-GMLC) test case.

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“…Some previous important related studies on drinking water systems in demand side management have discussed the opportunities for water systems to reduce peak electricity demand [14][15][16], while others deal with some energy efficiency operations in DWS [10,17]. In the United Kingdom, Menke et al [18][19][20] considered the design of the local DR markets, particularly frequency response and reserve power mechanisms operated by the British transmission system operator National Grid. They proposed a mathematical model making it possible to optimize participation of DWSs in these mechanisms, proving both economic and ecological benefits [18].…”

Section: Drinking Water Systems and Electric Flexibilitymentioning

confidence: 99%

“…They proposed a mathematical model making it possible to optimize participation of DWSs in these mechanisms, proving both economic and ecological benefits [18]. The relevance of using variable speed pumps to improve DR participation has also been demonstrated [20]. Simulations were done using a benchmark water network and numerical results were discussed for a range of pump usage rates and a range of overall rewards for the provision of DR using historical statistics provided by National Grid.…”

Section: Drinking Water Systems and Electric Flexibilitymentioning

confidence: 99%