The increased efficiency created a profit that Toronto Hydro passed down to its customers in temporary rate reductions.

Between 1964 and 1974, Toronto Hydro spent more than $31 million to put overhead wires and transformers underground.

1970s: As environmentalism grew, Toronto Hydro introduced a variety of energy conservation programs and incentives to customers.

The building boom of the late 1960s meant that in 1970, Toronto Hydro's peak load increased 5.6 per cent over the previous year.

In January 1998, approximately 350 employees helped restore power following the ice storm in eastern Ontario and southern Quebec.

2000s: In 2001, Toronto Hydro began powering 100 vehicles with low-sulphur diesel and soy-based biodiesel fuel.

2010s: In 2011, Toronto Hydro launched various social media channels, which has given its customers the ability to interact with the organization in a variety of convenient ways.

In 2017, Toronto Hydro launched PowerLens®, an online platform allowing customers to view how their homes use electricity so that they can take steps towards conservation and saving.

Over this five-year period, Toronto Hydro has secured more than $2 billion in capital funding that it will use to meet the growing demand for electricity, to safeguard against extreme weather events and upgrade aging infrastructure.