Science and technology in the United States finish. For example, the British engineer Joseph Swan built an incandescent electric lamp in 1860, almost 20 years before Edison. But Edison's light bulbs lasted much longer than Swan's, and they could be turned on and off individually, while Swan's bulbs could be used only in a system where several lights were turned on or off at the same time. Edison followed up his improvement of the light bulb with the development of electrical generating systems. Within 30 years, his inventions had introduced electric lighting into millions of homes. Another landmark application of scientific ideas to practical uses was the
Government incentives for plug-in electric vehicles Peugeot ePartner, Renault Kangoo Z.E., and Smith Electric Edison. The number of eligible registered plug-in electric vehicles passed the 25,000 unit milestone in January 2015. , the number of eligible registered plug-in electric cars that have benefited with the subsidy totaled 94,541 units since the launch of the programme in 2011. , the number of claims made through the Plug-in Van Grant scheme totaled 2,938 units since the launch of the programme in 2012. About 90,000 plug-in electric vehicles have been registered in the UK up until December 2016, including over 85,000 plug-in hybrids and all-electric cars, and about 4,000