He was president of the National Electric Light Association of the United States in 1896–97 and brought its annual convention to Niagara Falls, Ontario, in 1897.

[3] Pellatt hired the same architect, Edward J. Lennox to design both his home and his hydroelectric generator in Niagara Falls.

[4] Pellatt and partners William Mackenzie and Frederic Thomas Nicholls formed the Electrical Development Company of Ontario in 1903, buying water rights from the Niagara Parks Commission for $80,000 a year.

Nicholls was one of the directors along with William Mackenzie and Wilmot Deloui Matthews to form the Canadian Shipbuilding Company with capital of $1 million in the early 1900s ($21,733,333 in 2018).

Frederic Nicholls's speech of January 19, 1905, to the Empire Club in Toronto was published as Niagara's power: past, present, prospective .