FortisBC's Deep Energy Retrofits Cut Gas Use by Up to 65% in B.C. Buildings — FortisBC Energy Inc.

Event summary

FortisBC's Deep Energy Retrofit Pilot reduced gas use by 50-65% and GHG emissions by 50-60% in four multi-unit residential buildings in B.C.
Annual gas cost savings ranged from $8,000 to $27,000 per building over a one-year evaluation period.
The pilot involved building envelope improvements and high-efficiency gas and electricity mechanical systems in occupied buildings.
Residents reported improved comfort, fresher air, and better temperature control post-retrofit.
FortisBC is evaluating the data to inform a potential future deep energy retrofit program.

The big picture

FortisBC's successful pilot demonstrates the viability of deep energy retrofits in existing buildings, aligning with broader trends toward energy efficiency and emissions reduction. The results highlight the potential for significant cost savings and improved resident comfort, positioning such retrofits as a practical tool for meeting climate goals. With many buildings expected to remain in use by 2050, the pilot provides a scalable model for modernizing infrastructure while maintaining affordability and sustainability.

What we're watching

Program Expansion: Whether FortisBC will scale the pilot into a broader deep energy retrofit program based on the positive results.
Policy Influence: How the pilot's findings may shape provincial climate action goals and building efficiency regulations.
Market Adoption: The pace at which building owners and policymakers adopt similar retrofits to reduce emissions and energy costs.