Optimal operation of a CHP plant participating in the German electricity balancing and day-ahead spot market

Kumbartzky, Nadine; Schacht, Matthias; Schulz, Katrin; Werners, Brigitte

doi:10.1016/j.ejor.2017.02.006

Cited by 64 publications

(29 citation statements)

References 39 publications

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“…The mCHP system under consideration was explicitly developed to simultaneously provide low pollutant emissions, a high efficiency, and a high flexibility. It utilizes a 1-cylinder engine fueled by natural gas with a displacement volume of 325 cm 3 . The engine is always operated at full load, driving an asynchronous generator to generate electrical energy.…”

Section: Test Bench Setupmentioning

confidence: 99%

“…On the one hand, such plants feature a very high energy efficiency by simultaneously generating thermal and electric power as close as possible to the demand site. On the other hand, CHPs can offer power balancing services to stabilize the electricity grid [3,4]. In addition, particularly for CHPs of the mini and micro power class (<50 kW el ), there is a tendency towards a more demand-driven operation based on the actual energy consumption [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Reduction of Cold-Start Emissions for a Micro Combined Heat and Power Plant

et al. 2020

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Decentralized power generation by combined heat and power plants becomes increasingly popular as a measure to advance the energy transition. In this context, a substantial advantage of small combined heat and power plants is based on the relatively low pollutant emissions. However, a large proportion of the pollutant emissions is produced during a cold-start. This fact is not reflected in governmental and institutional emission guidelines, as these strongly focus on the emission levels under steady-state conditions. This study analyzes the spark advance, the reference air/fuel ratio and an electrically heated catalyst in terms of their potential to reduce the cold-start emissions of a micro combined heat and power plant which uses a natural gas fueled reciprocating internal combustion engine as prime mover and a three-way catalytic converter as aftertreatment system. Based on these measures, control approaches were developed that account for the specific operating conditions of the class of small combined heat and power plants, e.g., full-load operation and flexible, demand-driven runtimes. The experimental data demonstrates that even solutions with marginal adaptation/integration effort can reduce cold-start emissions to a great extent.

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Section: Test Bench Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reduction of Cold-Start Emissions for a Micro Combined Heat and Power Plant

et al. 2020

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“…Due to the many favourable qualities of CHP, a common view is that it should be kept in use. For example, CHP-DH systems are seen to have value in VRE integration through optimal production [8], balancing services [9], and the interlinkage of the heat and power sectors [10,11].…”

Section: Introductionmentioning

confidence: 99%

Is District Heating Combined Heat and Power at Risk in the Nordic Area?—An Electricity Market Perspective

2018

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The Nordic power market has exceptionally low carbon emissions. Energy efficient combined heat and power (CHP) plays an important role in the market, and also produces a large share of Nordic district heating (DH) energy. In future Nordic energy systems, DH CHP is often seen as vital for flexibility in electricity production. However, CHP electricity production may not be profitable in the future Nordic market. Even currently, the prevailing trend is for CHP plants to be replaced with heat-only boilers in DH production. In this work, we aim to describe the future utilisation of CHP in the Nordic area. We use an electricity market simulation model to examine the development of the Nordic electricity market until 2030. We examine one main projection of electricity production capacity changes, and based on it we assess scenarios with different electricity demands and CO 2 emission prices. Differences between scenarios are notable: For example, the stalling or increasing of electricity demand from the 2014 level can mean a difference of 15 e/MWh in the average market price of electricity in 2020. The results of this paper underline the importance of considering several alternative future paths of electricity production and consumption when designing new energy policies.

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“…The decision to allocate the quantities of electricity on the electricity markets should be taken on after a detailed analysis of the operating regimes for each cogeneration plant. Different approaches to the participation of the CHP plants in the energy markets can be found in works [8][9][10][11][12][13]. There are several publications that take various aspects into consideration (low operation cost, reduction of fuel consumption, low carbon dioxide emission) and therefore algorithms for economic dispatching of CHP are proposed [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

The Operating Strategies of Small-Scale Combined Heat and Power Plants in Liberalized Power Markets

Atănăsoae

2018

Energies

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Distributed generation is a good option for future energy systems with respect to sustainable development. In this context, the small-scale combined heat and power (CHP) plants are seen as an efficient way to reduce greenhouse gas emissions due to lower fuel consumption compared to the separate generation of the heat and electricity. The objective of this paper is to establish operating strategies of the small-scale CHP plants to reduce operational cost and increase revenue in liberalized electricity markets. It analyzes a cogeneration plant with organic Rankine cycle and biomass fuel under the conditions of the Romanian electricity market and the green certificates support scheme for electricity generated in high efficiency cogeneration and from renewable sources. The main finding is that choosing an appropriate mode of operation and using correlated prices of heat and electricity can increase the trading profitability of a CHP plant in liberalized power markets. This can be done by an analysis of the particularities and the specific operating conditions of the CHP plant. The results show that the operating strategies of the CHP plant can yield substantial net revenues from electricity and heat sales. The CHP plant can be economically operated to a useful heat load of more than 40% when operating strategies are applied.

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Optimal operation of a CHP plant participating in the German electricity balancing and day-ahead spot market

Cited by 64 publications

References 39 publications

Reduction of Cold-Start Emissions for a Micro Combined Heat and Power Plant

Reduction of Cold-Start Emissions for a Micro Combined Heat and Power Plant

Is District Heating Combined Heat and Power at Risk in the Nordic Area?—An Electricity Market Perspective

The Operating Strategies of Small-Scale Combined Heat and Power Plants in Liberalized Power Markets

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