San Diego scored 70.49 and has consistent high rankings across the board , though doesn ’ t come in above seventh for a particular area . It ranks seventh for lifestyle , 13th for energy sources , 14th for transportation and 16th for environment . San Diego set Climate Action Plan goals in 2015 and this plan is being led by the Environmental Services Department who are working on increasing use of renewable energy across the city to achieve 100 % use by 2035 , facilitating property upgrades in line with PACE ( Property Assessed Clean Energy ) financing , and installing ‘ smart ’ adaptive control street lighting with the aim of installing between 13,000 and 15,000 energy efficient and smart streetlights .

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