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To: [log in to unmask] Copy to:[log in to unmask] I have been seeking information about the James Balleny Elkington (1865) patented copper electro-refining process, used for the first such refinery installed in Pembroke, Wales in 1869. The Mason and Elkington electric power plant built there to provide the power may have been the first anywhere.* In 1875 copper was refined electrolytically by the Norddeutsche Affinerie in Hamburg, Germany, with a power plant obviously necessary. However, there are claims that Thomas Edison built the first power plant in London in 1882, and another in New York later the same year. It will be helpful if further details about Welsh activities in this important subject can be obtained and publicized. In my opinion, the factor of maximum importance in the Industrial Revolution was the industrial application of electricity, and I will help as much as I can to obtain appropriate credit for the Welsh contribution. * References: History of Technology, vol. 5, (Oxford, London) Chapter 4, p. 100 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%