Sentence:  [Rural solar plant] schemes are of little help to industry or other heavy users of <WSD>electricity</WSD>. Nor is solar power yet as cheap as the grid. For all that, the rapid arrival of electric light to Indian villages is long overdue. When the national grid suffers its next huge outage, as it did in July 2012 when hundreds of millions were left in the dark, look for specks of light in the villages. 
Meaning of the word marked with <WSD> tags:  Electric power/energy as used in homes etc., supplied by power stations or generators. (from 19th c.)