Efficiency and Micropower for Reliable and Resilient Electricity Service: An Intriguing Case-Study from Cuba

This case study by Amory B. Lovins of the Rocky Mountain Institute examines Cuba's transition from a fragile, centralized electricity system to a more resilient model based on energy efficiency and distributed micropower. Following severe blackouts in 2004 and 2005, the Cuban government launched 'La Revolución Energética' in 2006, which combined mass deployment of efficient appliances, inverted electricity tariffs, and the installation of thousands of microgenerators to eliminate blackouts by 2007 and improve grid resilience against natural disasters.

• Cuba experienced a severe electricity crisis in 2004 and 2005, with blackouts occurring on 188 days and 224 days respectively, driven by aging thermal power plants that failed approximately 40% of the time and grid losses averaging 17%.
• The 2006 'La Revolución Energética' initiative achieved rapid reductions in fuel use—cutting kerosene by 66%, LPG by 60%, and gasoline by 20%—through the mass replacement of inefficient appliances with high-efficiency models from China and the implementation of steeply inverted electric tariffs.
• Cuba decentralized its electrical architecture by installing 1,854 diesel and fuel-oil-fired microgenerators totaling 1,820 MW across 110 municipalities, alongside 6,000 emergency backup generators totaling 690 MW. By the end of 2007, distributed generation accounted for over half of the country's 5,861 MW total capacity.
• The shift to a distributed grid increased resilience against natural disasters; during 2008 hurricanes that felled 167 transmission towers, distributed generators and mini-grids maintained critical services. Additionally, the transition contributed to a reduction in CO2 emissions between 2005 and 2007 equivalent to 18% of 2002 levels.
• While currently reliant on oil swaps from Venezuela, Cuba's strategic goal is a transition to renewables, leveraging an economic wind potential of 5,000 to 14,000 MW and an average insolation of 5 kWh/m2-d. Current efforts include over 8,000 distributed solar systems and 478 MW of bagasse cogeneration at sugar mills.

APA

Lovins, A. B. (2010). Efficiency and Micropower for Reliable and Resilient Electricity Service: An Intriguing Case-Study from Cuba. RMI. https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2010-23_CubaElectricity.pdf

Chicago

Lovins, Amory B. Efficiency and Micropower for Reliable and Resilient Electricity Service: An Intriguing Case-Study from Cuba. RMI, 2010. https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2010-23_CubaElectricity.pdf.

Wikipedia

{{cite report |last1=Lovins |first1=Amory B. |title=Efficiency and Micropower for Reliable and Resilient Electricity Service: An Intriguing Case-Study from Cuba |publisher=RMI |date=31 January 2010 |url=https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2010-23_CubaElectricity.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{lovins2010efficiency, author = {Lovins, Amory B.}, title = {{Efficiency and Micropower for Reliable and Resilient Electricity Service: An Intriguing Case-Study from Cuba}}, institution = {RMI}, year = {2010}, month = jan, url = {https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2010-23_CubaElectricity.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }