In June 1966 the light was converted to electricity and the intensity raised to 1,000,000 cd.
In 1956 the light was converted to electricity and automated.
Considering how difficult it is to efficiently convert heat to electricity.
It was originally water powered, but converted to electricity in the 1930s.
The lighting was originally gas and has since been converted to electricity.
Only some of the fixtures were converted to electricity around 1910.
The light was converted to gas in 1890 and to electricity in 1924.
In later years kerosene was used and eventually they were converted to electricity.
Only about 40 percent of the thermal energy in coal is converted to electricity.
Hence, the solar energy cannot be converted to electricity beyond a certain limit.