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Title:
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Mogelijke effecten van NOx-beleid op het warmtekrachtpotentieel : een analyse van de invloed van bestrijdingskosten op de rentabiliteit van warmtekracht
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Author(s):
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Published by:
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Publication date:
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ECN
Policy Studies
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1-12-2000
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ECN report number:
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Document type:
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ECN-C--00-111
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ECN publication
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Number of pages:
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Full text:
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50
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Download PDF
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Abstract:
The effect of more stringent emission levels on the potential of gasengines in combined heat and power plants (CHP) has been studied. Common
legislation for new gas engines demands 140 g NOx/GJ fuel consumption. Higher
emission levels are allowed if an existing engine has a permit older than
1994. The more stringent emission levels in this study consist of 50 g/GJ for
existing gas engines and 25 g/GJ for new gas engines (after 2001). The new
legislation for old engines is introduced in phases, so a gas engine facing a
new emission level is at least 10 years old. The calculations of the CHP
potential are derived from an economic model based on costs and energy
prices. The more stringent emission levels can be met by using exhaust gas
cleaning by means of selective catalytic reduction (SCR). This leads to
higher costs and lower investments in new gas engines. Retrofitting of SCR at
existing gas engines in combination with costs for major maintenance
sometimes leads to unremunerative situations, which results in the engines
being closed down. The calculations are executed for two scenarios on the
development of energy prices. One scenario is characterised by favourable
energy prices for CHP (scenario 'high') and the other scenario is
characterised by unfavourable energy prices scenario 'low'). 15 refs.
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