As part of a market liberalization plan, 80% of European households will be outfitted with energy-saving 'smart' utility meters over the next decade. Some 80 percent of European consumers are set to have smart energy meters installed in their homes by 2020 as part of a deal on liberalising the EU's energy market. This will allow them not only to carefully screen and control energy consumption, but also to sell energy back to the network, for instance by installing solar panels on the roof.