Lakeridge Health Hospital

Lakeridge Health Hospital

Lakeridge Health has emerged as a best-in-class example of energy efficiency, asset renewal, and improved patient care experience after an extensive energy retrofit at four of its hospitals in Ontario.

Lakeridge Health partnered with Ecosystem to implement 29 different measures that are fully paid for through energy savings and incentives.

One of the hospitals is now producing electricity with a combined heat and power (CHP) plant. Fuelled by natural gas, the CHP plant provides the hospital with an in-house source of electricity, as well as thermal energy through heat recovery from the generators.

The measures also include solar photovoltaic panels on three buildings to generate clean power that Lakeridge Health can sell back to the grid.

Overall, this customized project has increased operating efficiency, renewed poorly functioning assets, and reduced heating and cooling loads, while meeting the hospitals’ energy needs with low-cost and green energy sources.

  • 22%

    Energy Bill Reduction

  • 2010-2016

    Project Period

  • $17.7M


  • $1.4M

    Guaranteed Annual Savings

  • $2.5M



Combined heat and power systems, though still relatively rare, are gaining popularity in markets with high electricity costs.  In certain cases, these systems can even provide complete energy independence from the grid.


2015 Top 15 Green Projects in Canada, Clean50, Lakeridge Health

2013 Green Hospital of the Year from the Ontario Hospital Association 2014 Environmental Achievement Award from the Durham Environmental Advisory Committee

Customized Performance Measures

Combined Heat and Power (CHP)

Onsite gas-fueled power plant that generates both electricity and heat for a lower cost and with higher efficiency than energy available from the grid, leading to greater resiliency and energy independence.

Solar panels

Installation of solar panels to generate electricity that is sold back to the grid for a steady revenue.

Steam to Hot Water Conversion

Conversion of the heating system from a steam system—which is energy intensive and subject to leaks—to a hot water system, which uses less energy to reach the required temperature.

Centralized Controls

Upgrade of systems that enable automatic control of electromechanical equipment in order to maintain occupant comfort and manage energy consumption.


Replacement of older generation bulbs and fluorescent tubes by LEDs, which are more efficient and provide better lighting quality.

Removal of City Water Cooling Load

Certain cooling equipment previously used city water to evacuate the heat produced by the equipment, leading to high costs and waste of potable water. These units are now cooled using the existing chilled water system.