For information about the value of conservation, energy efficiency guides or research, check here for publications from the IESO and its partners.

Helping Greenhouses Grow

The IESO is collaborating with Ontario’s agriculture sector to find new opportunities and innovative solutions to saving energy and demand as the sector adapts to new growth.

Visit the Greenhouse Energy Profile web page to get the full report and learn more. 

Ontario's Energy-Efficiency Potential

For Ontario businesses, energy efficiency will continue to be a cost-effective and valuable resource into the next decade and beyond. That’s what the results of the 2019 Achievable Potential Study (APS) found, a joint report from the IESO and Ontario Energy Board to identify potential energy savings and greenhouse gas emissions reductions over 2019 to 2038.  And, for the first time, the report also looks at both electricity and natural gas savings. The APS helps inform the continued development of energy-efficiency programming and supports the IESO’s work to plan for Ontario’s future energy needs.

For more information visit the APS web page on the IESO website

Link to Take Control of Your Energy Costs

Take Control of Your Energy Costs

Managing your organization's energy consumption can start with a few basic steps. Learn how to keep your costs in check with this energy checklist.

Link to The Bottom Line on Energy Management

The Bottom Line on Energy Management

This guide explains electricity pricing for businesses and discusses ways to reduce costs by managing how and when you use electricity. It highlights the role professional energy managers play in an organization; explains the elements of business electricity bills – including how to manage your global adjustment costs; and makes the case for demand response.

IESO 2017 Report on Energy-Efficiency Activities

Energy efficiency remains the most cost-effective resource and a key component in planning for the energy needs of the province. Recognized as a leader in North America for its commitment to energy efficiency, Ontario has leveraged its achievements to help mitigate capacity gaps, defer the need to build new infrastructure, and increase business competitiveness. Ontario achieved 1.8 TWh of energy savings in 2017 – that’s 55 per cent more savings than the previous year. Find out more in the IESO’s Report on Energy-Efficiency Activities.

Link to Demand Response publication

Demand Response

Shifting when you use energy can be an effective cost-cutting strategy for many businesses. Here’s an introduction to the basics of demand response (DR) and the many ways to participate in DR programs in Ontario.

Sector-Specific Publications

Link to Ontario Municipal Energy Profile

Ontario Municipal Energy Profile

Ontario’s municipalities are achieving strong results when it comes to managing their energy costs. According to a report prepared for the IESO and the Ontario Ministry of Energy by ICF Canada, they have decreased their electricity consumption by six percent since 2006 – in part due to their participation in Save on Energy programs.

Read the full profile

Read the summary

Market Characterization & Conservation Potential for Ontario's Drinking Water & Wastewater Treatment Plants

Many Ontario water treatment plants have taken steps to help them reduce electricity consumption. This report shows that municipalities can reduce their use by an additional ten per cent through operational and systemic changes, shifting energy use from peak to off-peak times and taking advantage of existing energy-saving opportunities.

Read the full report


LED Streetlight Research Series

LED Streetlights on roads or in parking lots can transform municipal operations – by reducing energy and maintenance costs – and making communities safer. These 2017 reports prepared by Lightsavers Canada demonstrates the value of making the switch to LED in public spaces.

The Realized Results of LED Streetlights: Seizing the opportunity

LED Lighting for Parking Facilities: A Lightsavers primer

Model Technical Specifications for Procurement of LED Luminaires in Canada

Building Intelligent Communities with Advance Streetlighting

Link to Operating Room Ventilation Systems Best Practices Guide

Operating Room Ventilation Systems Best Practices Guide

Ventilation in hospital ORs is a high-energy intensive service. This report prepared by Greening Health Care provides insights into best practices adopted by various hospitals throughout Ontario to reduce costs and improve patient care.

General industry roundtable cover

General Industry Roundtable

Ontario businesses have many opportunities to reduce overhead costs through Save on Energy retrofits, energy audits, lighting and equipment upgrades. With 51 per cent of industrial companies agreeing that energy efficiency is a top priority at their company, this publication shines light on how general industry can further their energy-efficiency efforts and ultimately save.



Retail Roundtable

Here’s a roundtable with retailers, energy managers and equipment vendors to discuss the successes and challenges they experience in managing their electricity costs for retail operations.




Hospitals Roundtable

Due to the nature of their operations, hospitals have the highest energy intensity of all publicly-funded facilities. This paper frames energy savings in Ontario’s hospitals as an opportunity to renew infrastructure and free up funds for health-care services.





Automotive Industry Roundtable

Energy bills only account for eight to 20 per cent of an auto plant’s operating cost.  Yet, increasing electricity costs, and more stringent environmental regulations have led many companies to redouble their energy saving efforts. This paper discusses how Ontario’s automotive sector is rethinking energy management and overhauling its approach to energy efficiency.