time-of-use based electricity tariffs / oil security obligations / energy markets / peak energy use / energy sector / energy management / greater energy efficiency / high efficiency low emissions intensity electricity generation / renewable energy / energy market reform agenda / gas markets / lower emissions energy supply / energy products / energy prices / grid-backed-up distributed energy systems / energy infrastructure / wider energy market / renewable and other alternative energy sources / energy efficiency measures / energy productivity / gas sources / clean energy industries / energy use efficiency / energy / energy commodities / /