The terms get used interchangeably, but an energy audit and an energy assessment are two different things. Understanding the distinction matters — particularly when you're making capital investment decisions or applying for funding that requires a specific level of analysis. We clarify what each involves, where they overlap, and how to choose the right scope for your situation.

Net zero HVAC design takes more than swapping equipment. Efficiency Engineering shares practical lessons from the field on designing mechanical systems that actually perform.

Decarbonization has moved from a future consideration to a present one. For building owners and managers, the question is no longer whether buildings need to change — it's how to approach that change in a way that makes sense for your asset, your tenants, and your long-term operating strategy. This article breaks down what building decarbonization actually involves, why capital upgrade decisions made today carry more weight than they used to, and how a phased approach can make the transition manageable.

Most project teams run an energy model. Few get full value from one. When modelling is integrated into the design process from the start — rather than completed at the end for compliance — it becomes a powerful tool for comparing systems, reducing lifecycle costs, and making confident capital decisions. This article explains the difference, and what to look for in an energy modelling partner.

An energy audit is one of the most valuable steps a building owner can take — but the process is often misunderstood. We break down what a professional audit actually involves, what you'll receive at the end, and why the quality of the audit matters as much as the decision to do one.