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Use of Green Certificates in the Nordic power supply
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Energy policy in the Nordic countries. Green certificates – What, why and how? Sweden’s ”Elcertifikat” system. Status Norway. Good design – A critical factor for success. Presentation of some simulation results. Advantages and disadvantages. Discussion and questions.
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Some shared goals in the Nordic energy and environmental policies Increase the share of ”green energy”. Individual national goals. Reduce CO 2 and other climate gas emissions. Increase energy efficiency and reduce the use of energy. Increase the share of water-borne heat.
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A golden rule ”When finding the most cost-efficient solution one must define and stay focused on the main goal.”
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If the main goal is: Increase the share of green electricity, then the means to acheiving it is: Green certificates.
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Green certificates – What are they? A proof of authenticity showing that a certain amount of electricity is generated using green technology, i.e. based on renewable energy sources. The certificates are financial assets which can be traded in a financial market. Goal: Increase the share of green electricity in the total consumption. Only new/ increased capacity qualifies.
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How it works A certificate is issued and handed to the generator for each unit of green electricity it feeds into the grid. The consumers are obligated to cover a certain share of their electricity consumption by green electricity. The income from the sales of certificates provides the generator with an additional income to the the income from electricity sales itself.
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Countries with a green certificate system Sweden Belgium The Netherlands Italy UK Austria Several states in the U.S.A. Australia Japan China Postponed: Denmark
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The Swedish ”Elcertifikat” system Started May 1 st, 2003. Goal: Increase the share of renewable electricity by 10 TWh from 2002 to 2010. Obligatory quota imposed on all consumers in Sweden, with the exception of certain industries. (Increasing quota: From 7,4% in 2003 up to 16,9% in 2010.) Penalty fee for every MWh non-complied quota, equivalent to 150% of the average certificate price. (During a transition period: 175 SEK/MWh in 2004, 240 SEK/MWh in 2005.) The generators are guaranteed a minimum price up until 2008. (Decreasing from 60 SEK/MWh in 2004 to 20 SEK/MWh in 2008.)
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”We should aim to participate in an international obligatory certificate market for green electricity.......We are not pursuing a national certificate market” (Comment by the Minister of Petroleum and Energy, Einar Steensnæs, November 1 st, 2002, after presenting the Parliamentary Report (Stortingsmelding) no.9 (2002 – 2003).) Status Norway (Fall 2002)
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”The Parliament asks the Government to take the initiative in establishing – preferably – a common Norwegian/ Swedish obligatory green certificate market that can possibly be coordinated with an international market, with a view to present a definite proposal to the Parliament as soon as possible, and by Spring 2004 at the latest.” (From the Parliamentary bill (Innstilling) no.167 (2002-2003), presented March 2003.) Status Norway (2003)
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Good design – A critical factor for success Who should be the obliged actor? Banking. Borrowing. Compliance control and penalty pricing. Defining eligible renewables. How keep on supporting immature technologies and R&D?
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System dynamic model Key qualities: Non-linear dynamics. The effect of feedback loops is taken into account. Basis: Simplified version of KraftSim, a model for the Nordic power market. New: Adding a model for a certificate market. Simulations were performed assuming different conditions and designs.
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Design with low versus high flexibility
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The consequences of failed planning – overambitious initial goal
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The consequences of failed planning - too low maximum price
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The consequences of failed planning - too short clearing time
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General discussion Advantages: Supports and increases the share of green electricity prouction by giving the ”greenness” a monetary value. Cost efficient. The cost is transferred from the state to the consumers and producers. The substantial potential for i.e. wind power in Norway. Increase the self-sufficiency in electricity supply in the Nordic countries/ Europe. Disadvantages: Less predicitable development than i.e. subsidizing. Uncertain price development. Increased use of electricity? Unable to differentiate between the varying environmental impact renewable and non- renewable electricity has on the environment. If heat isn’t included: May possibly be discriminatory against district heating. Exploitation of natural resources in certain regions. Norway has already a high renewable share. Increasing this share may also increase the seasonal variations in production. Should Norway rather utilize its natural gas resources? The Nordic countries can set an example and play a leading role in the development of a future international market.
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