It has been estimated that around 15% of global agricultural production costs on-farm are energy-related. With heightened concerns around the sustainability of crop and livestock production, the agricultural sector must develop and invest in alternative methods of farming that recoup the same results but have a reduced environmental impact. Energy-smart farming: Efficiency, renewable energy and sustainability reviews recent research undertaken on the ways of reducing the costs and environmental impact of on-farm energy use. The collection explores advances in improving energy efficiency on farms, the use of renewable energy technologies such as anaerobic digestion and agrivoltaics as well as how more sustainable energy use can be delivered in practice in livestock and other production systems.