Bono Solar (Solar Bonds) is an initiative of the Mexican Climate Initiative (ICM) in development over the past two years or so. Bono Solar is a financing scheme to increase the presence of photovoltaic distributed generation in Mexican homes. The scheme involves a startup fund for installation of PV in the first year, but finances the program in an ongoing way with net savings to electricity subsidies provided by the government through electricity tariffs (“Revolvencia y Fondo de Arranque”).
Given the potential represented by this innovative program, Berkeley Lab and ICM propose a joint project to perform critical analysis to bolster the opportunity of greater integration of energy efficiency in Bono Solar.
Implementation of high-efficiency equipment will come with an up-front cost, but lower overall energy bills over time. The first task will consider costs and savings associated with each end use and consider combinations with PV subsidies, differentiated by climate zone (tariff class). The analysis will include lighting, refrigerators and minisplit air conditioners. Parameters to be considered as part of the analysis will include (1) geographical differences and presence of air conditioning, (2) household income, (3) new installations vs. retrofits, and (4) tariff categories.
ICM has published a comprehensive analysis of costs and benefits associated with Bono Solar and launched a pilot that should be under implementation during the period of the energy efficiency analysis. The main output of the project will be a briefing / annex to that main work and a revised integrated spreadsheet.