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Energy efficiency programs in the context of increasing block tariffs: The case of residential electricity in Mexico

Hancevic, Pedro Ignacio, Lopez-Aguilar, Javier Alejandro
Energy policy 2019 v.131 pp. 320-331
air conditioning, carbon dioxide, electric energy consumption, electricity, energy efficiency, equipment, greenhouse gas emissions, income elasticities, lamps, prices, refrigerators, tariffs, washing, Mexico
Increasing block pricing schemes represent difficulties for applied researchers who try to recover demand parameters, in particular, price and income elasticities. The Mexican residential electricity tariff structure is amongst the most intricate around the globe. In this paper, we estimate the residential electricity demand and use the corresponding structural parameter estimates to simulate an energy efficiency improvement scenario, as suggested by the Energy Transition Law of December 2015. The simulated program consists of a massive replacement of electric appliances (air conditioners, fans, refrigerators, washing machines, and lights) for more energy-efficient units. The main empirical findings are the following: in the main counterfactual scenario, the overall residential electricity consumption decreases 9.9% and the associated expenditure falls 11.3%. Additionally, the electricity subsidy decreases 7.5 billion of Mexican Pesos per year (i.e., 403 million of USD at the average exchange rate registered in 2017) and there is an annual cut in CO2 emissions of 3.9 million of tons.