Contratos por diferencias para carbono

¡Bienvenidos a un nuevo curso académico, también para Economics for Energy! Como siempre, próximamente os informaremos de las actividades previstas para el otoño, incluyendo la presentación de nuestro informe sobre escenarios de transporte.

Pero mientras, y para comenzar a conversar sobre temas interesantes, transcribo la entrada de blog que se publica hoy en Climate Strategies, y en la que resumo el policy brief reciente que hemos elaborado Timo Gerres y yo, en el marco de la Plataforma Europea de Materiales Amigables con el Clima, acerca de los contratos por diferencias para los precios de carbono, un instrumento que nos parece muy importante para avanzar en la descarbonización de la industria, y más aún en el contexto de los planes de recuperación económica que los gobiernos deben tener listos muy pronto, y en los que ya llevan tiempo trabajando.


Carbon Contracts for Differences (CCFD) are one of the elements of the policy package developed by the Climate Friendly Materials Platform (CFMP) in order to help decarbonise European’s industry while preserving its competitiveness. CCfDs may also be an important component of Resilient Recovery Funds (and have been already included in the German national hydrogen strategy and in drafts of the forthcoming Green Deal Recovery Package). Read the new CFMP Policy Brief on CCfDs here.

Carbon Contracts are contracts by which a public administration or a private agent agrees with another agent on a fixed carbon price over a given time period. If formulated as a strike price over a carbon market price (a two-sided option) they become Carbon Contracts for Differences. As may be seen in the following figure, if the carbon market price is lower than the strike price, the agent receives the difference. If the market price is higher, the agent has to return the additional revenue to the counterpart (e.g. the government).

CCfDs serve two purposes: removing the large long-term uncertainty associated to carbon prices (even with a Market Stability Reserve), hence reducing financing costs; and also conveying a premium over expected carbon prices, as a way to support emerging technologies. In addition, when signed by governments, they act as a commitment device to keep carbon prices high (since that reduces the cost of the contracts). In order to avoid potential pitfalls, we propose that these contracts are awarded only to specific projects.

For example: a steel-production facility may be interested in investing in a new, carbon-free technology such as green hydrogen reduction. But this will require a significant investment, which has to be recovered in part by selling in the market the emissions reduced. If the carbon market price is uncertain, this flow of revenue may not be able to support the investment. However, that facility might sign a CCfD with the government at a price sufficient to make the investment feasible (e.g., 70 euro/tCO2). When the carbon market price is lower, the government will pay the facility the difference for every ton of carbon reduced. When the carbon market price is higher, the facility will reimburse the government. The fact that the carbon price is stable under the contract means that the equivalent carbon price required to make the investment competitive could be reduced by 35%.

As usual, the way CCfDs are implemented will determine their potential success. Here there are two major issues: the geographical scope, and, if implemented at the national level, their compatibility with state aid rules.

Ideally, the geographical scope should be European. This would be consistent with current climate policies, and prevent distortions among national industries. However, this would require EU-specific funding, and on a more political basis, would require Member States relinquishing their competences over a very important decarbonization/competitiveness/industrial policy element. Therefore, it seems more likely or practical that CCfDs will be awarded on a national basis, which of course makes them subject to state aid rules, and would require a certain degree of harmonization among Member States.

Nationally-awarded CCfDs confer an advantage on a selective basis to specific companies or sectors, and therefore must comply with state aid rules. According to the current ones, this is possible if they go beyond the current level of environmental protection, and if they are awarded through a competitive process, which is actually the current CFMP proposal: a well-designed, technology-neutral tender that ensures competition and removes the information asymmetry between the government and industry.

CCfDs also present several opportunities of synergies with other elements of the CFMP policy package. For example, CCfDs might be awarded automatically as part of a tender for Green Public Procurement (GPP), to make the support for greener options more explicit. Or they could be awarded automatically (but not exclusively) to projects selected for EU or national innovation funds. CCfDs can also complement consumer-based policies, such as carbon taxes or the climate contribution proposed by the CFMP: policies penalizing the use of carbon-intensive materials favour low-emission options and therefore improve the business case for projects eligible for CCfDs. Finally, CCfDs could be coupled with renewable contract for differences or power-purchase agreements, thereby addressing and hedging the risk of the two components of decarbonisation: energy inputs and emissions outputs. In all cases, care should be taken to prevent oversubsidization and to address potential market interactions.

We do believe that CCfDs are a very powerful tool for helping European industry transformation during the first stages of the transition period towards a low emission economy, and that the current discussion about a green recovery provides a great opportunity for their quick implementation.

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