TS=((("energy efficiency" OR "energy consumption" OR "energy transition" OR "clean energy technology" OR "energy equity" OR "energy justice" OR "energy poverty" OR "energy policy" OR "renewable*" OR "2000 Watt society" OR "smart micro-grid" OR "smart grid" OR "smart microgrid" OR "smart micro-grids" OR "smart grids" OR "smart microgrids" OR "smart meter" OR "smart meters" OR "affordable electricity" OR "electricity consumption" OR "reliable electricity" OR "clean fuel" OR "clean cooking fuel" OR "fuel poverty" OR "energiewende" OR "life-cycle assessment" OR "life cycle assessment" OR "life-cycle assessments" OR "life cycle assessments" OR ("photochemistry" AND "renewable energy") OR "photovoltaic" OR "photocatalytic water splitting" OR "hydrogen production" OR "water splitting" OR "lithium-ion batteries" OR "lithium-ion battery" OR "heat network" OR "district heat" OR "district heating" OR "residential energy consumption" OR "domestic energy consumption" OR "energy security" OR "rural electrification" OR "energy ladder" OR "energy access" OR "energy conservation" OR "low-carbon society" OR "hybrid renewable energy system" OR "hybrid renewable energy systems" OR "fuel switching" OR ("foreign development aid" AND "renewable energy") OR "energy governance" OR ("official development assistance" AND "electricity") OR ("energy development" AND "developing countries")) NOT ("wireless sensor network" OR "wireless sensor networks")))
