Skip Links
Sector Participants > IESO News > IESO releases 2015 Ontario electricity data

News and Updates

IESO releases 2015 Ontario electricity data

January 14, 2016

The IESO has posted its annual release of electricity data pointing to increased output from renewable sources of supply and continued uptake in electricity conservation programs in 2015. Total Ontario grid-connected generator output by fuel type over the year was: nuclear, 60 per cent; hydro, 24 per cent; gas/oil, 10 per cent; wind, 6 per cent; and all remaining fuel types were less than one per cent each.

Electricity consumption in Ontario declined in 2015. Total energy withdrawn from the high-voltage transmission system in 2015 reached 137.0 terawatt-hours (TWh), down from 139.8 TWh in 2014 – a two per cent drop that can be attributed to conservation initiatives, increases in embedded generation, mild weather and broader economic shifts.

The weighted wholesale price of electricity – the Hourly Ontario Energy Price (HOEP) – for 2015 came in at 2.36 cents/kilowatt-hour (kWh). The estimated 2015 Global Adjustment (GA) rate as at December 31, 2015 was 7.78 cents/kWh.

Preliminary results for the first nine months of 2015 indicate 489 gigawatt-hours (GWh) of net energy savings attributable to programs delivered by local distribution companies and the IESO.

The full 2015 electricity production, consumption, price and conservation data are available here.

< Back to IESO News