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Auctions net metering

Renewable Energy Policies in Latin America and Caribbean: Auction and Net Metering

January 30, 2020 por Mauricio Tolmasquim - Michelle Hallack Leave a Comment


Latin American and the Caribbean holds a comfortable leading place in terms of the share of renewables in the electricity generation matrix, mainly due to the share of hydropower generation, which accounted for 47% of total power generation in 2018. Even though the share of renewables in the generation mix decreased by 5% from 2000 to 2018, the generation output of renewables increased by 55%, in absolute terms, during the same period.

The expansion of renewables has been a consequence of the solar and wind power generation costs decrease, and the result of many policies applied in the Latin American and Caribbean region (LAC). The most important are energy auctions and net metering.

According to an IDB publication, the electricity market designs in LAC are strongly associated with long-term contracts and, in some countries, vertical integration. In both cases, the long-term power purchase agreements have been the most used mechanism to promote renewables, and recently most of them are granted through auction procedures.

Auctions to promote renewables energy

The importance of the auction process for the introduction of renewable energies is impressive. By 2017, up to 84 countries worldwide had made use of auction mechanisms to promote a new generation of renewable sources. In LAC, 10 countries in the region have implemented at least one type of renewable auction policy for a new supply of energy up to 2017.  Brazil (2005), Honduras (2007), Uruguay (2008), Jamaica (2008), Peru (2008), and Argentina (2009) first implemented this policy.

These auctions have shared some similarities: i) long-term contracts (from 15 to 30 years), ii) technology-specific competition, and iii) the vast use of solar and wind energy.

From 2009 to 2017, renewable auctions commissioned 13.1 GW to the grid in 8 countries in the region using 4 generation technologies: biomass and waste (0.5%), small hydro (4 %), solar (19%), and wind (76.5%). This capacity represents approximately 10.6% of regional added capacity and 34.3% of the added non-conventional renewable capacity.

Moreover, 564 winning projects are yet to be commissioned, accounting 28.1 GW new generation capacity in Argentina (4.1 GW) Brazil (9.1 GW), Chile (3.5 GW), El Salvador (0.2 GW), Guatemala (0.1 GW), Mexico (7.9 GW), Panama (2.6 GW) and Peru (0.6 GW).

The average price of new capacity auction dropped considerably (32.9%) from 2009 to 2017, especially for solar projects, which decreased by 86.9% from 2010 to 2017.

Auction and net metering policies

Regarding distributed generation, Net Metering (NM) policies have been widely used as a mechanism to promote their adoption, especially by small consumers like households and small businesses. NM policy is commonly referred as the permission given to utility-connected consumers to offset their consumption by inputting self-generated electricity surplus into the network and generating credits that can be used afterward.

Even though the general definition is straightforward, the design of NM policies varies across countries. For instance, a policymaker should decide elements like degree of Distributed Generation support versus financial sustainability of utilities, the compensation scheme; the minimal technical requirements of installation to guarantee the quality of DG; the rate at which credits are exchanged with the network, and the financial mechanisms, among other decisions. Thus, many countries in the world – including LAC – implement different set-ups of NM policies that can produce a comprehensive set of incentives, challenges, and outcomes.

Overall, the most common technology used to perform NM with the grid is the Solar Photovoltaic (PV) system, by which users generate energy while there is sunlight available. Even with the globally rapidly decrease in PV equipment prices and maintenance costs and an increase in generation efficiency, the adoption of DG technologies still encounters many constraints. These limitations may have different sources, such as household budget constraints, complicated or unattractive financing mechanisms, lack of knowledge about DG and NM, the lack of local technical capacity to assist installation, or a regulatory prohibition.

How to address increasing energy demand?

In LAC, 17 countries have adopted policies to introduce NM by 2018, with different stages of implementation (as pilot, regional, sectoral or national projects). Panama (2008); Mexico, Uruguay, Barbados, Costa Rica (2010); Brazil, Chile, El Salvador (2012), Colombia, Honduras, Guatemala (2014); The Bahamas, Jamaica (2015); Suriname (2016); Nicaragua (2017); Argentina (2018). Each adopting country has its settings of prior rules and socioeconomic characteristics, which affect the outcome of NM policies. Hence, the goal of this study is to explore the heterogeneity of NM policies adopted in the LAC region and the incentives they provide for the adoption of DG systems.

The high level of renewable energy in the LAC electricity generation mix is an advantage but also a challenge. The demand is increasing in the region much quicker than the developed countries, and this trend is expected to continue even with higher energy efficiency. Socio-economic development will be associated with higher access to energy services. To address this new demand maintaining the matrix clean (or even cleaner) will require massive insertion of new renewables energy. In countries based on oil or coal, natural gas insertion makes the matrix cleaner. For many LAC countries, based on hydropower, the insertion of natural gas will push in the contrary direction.

The mechanism to promote non-conventional renewables needs to be assertive enough to transform the challenge of keeping the LAC matrix clean in opportunities. For the last years, the mix of net-metering policies and Power Purchase Agreements have been preferred to push non-conventional renewables (as we can see at BID publication), however, there is room and need to move forward.

Auctions Net metering


Filed Under: English, Renewable Energy Tagged With: Auctions, clean energy, Net Metering

Mauricio Tolmasquim

Mauricio Tolmasquim is a Visiting Scholar for the Energy Division at the Inter-American Development Bank. Graduate in Production Engineering and Economics, with a Master's in Energy Planning and Doctorate in Economics. Professor at Federal University of Rio de Janeiro. Former Brazilian Vice-Minister of Mines and Energy. President of Empresa de Pesquisa Energética (EPE) – Brazil's energy research and planning authority. Has coordinated the work team that elaborated a new electricity sector for Brazil. Author of 20 books and dozens of articles published in national and international newspapers.

Michelle Hallack

Michelle Hallack es economista responsable por la área de conocimiento de la División de Energía del BID y coordinadora del grupo de regulación económica y políticas energéticas que presta asesoría técnica a los proyectos del banco. Ella es profesora licenciada de economía en la Universidad Federal Fluminense (Brasil) y consejera de la Escuela de Regulación de Florence (Italia) en Política Energética. Michelle tiene más de 12 años de experiencia en asesoría y consultoría en asuntos regulatorios para el sector privado, público y para organizaciones no-gubernamentales. Ella ha trabajado en proyectos para países en Europa, América Latina y Asia y ha publicado diversos artículos académicos y capítulos de libros. Posee un doctorado de la Universidad de Paris Sud XI en Economía, una maestría en Economía Industrial en la Universidad Federal de Rio de Janeiro, una maestría en Economía y Gestión de las Industrias de Redes por la Universidad Pontificia de Comillas (España) y por la Universidad de Paris Sud (Francia) (European Master Diploma - EMIN) y una licenciatura en Economía en la Universidad Estadual de Campinas (Brasil).

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