Total global energy investment in 2016 was just over $1.7 trillion, accounting for 2.2% of global GDP
Energy markets focus on the trade and supply of electricity, gas and liquid fuels. They consist of three main elements: generation or production, transmission and distribution, and supply. Once electricity is generated or gas is produced, it is sold on the wholesale market to suppliers, who sell it on to consumers and arrange for its delivery. It is distributed to homes and businesses through the transmission and distribution grids. In the UK, energy markets are regulated by the Office of Gas and Electricity Markets (Ofgem). In recent years the markets have experienced significant changes due to diversification of electricity generation through the rise of renewable energy sources, as well as the addition of many new suppliers. Investment in the energy system is also shifting, with increasing funds flowing into renewables, grid flexibility mechanisms, and low carbon transport.
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