How is energy modeling different than standard load calculations?
Heating and cooling load calculations are used simply for designing HVAC systems. True building energy modeling goes beyond mere load calculations and calculates the performance of the entire building as a system. For example: evaluating the overall contribution of daylighting considering both lighting load offsets and increasing summer cooling loads and decreasing winter heating loads. Reducing your risks from elevated utility rates is a key deliverable from looking at these ongoing costs upfront.

At what point during construction should energy modeling be performed?
Often building energy modeling is executed only after the site layout, architectural and mechanical plans, space use descriptions and information on building loads (lighting, equipment, etc.) are available. Ideally, however, the best value proposition is when building energy modeling is utilized in the pre-design or conceptual stage when major decisions regarding siting, building shape and envelope are made. The energy modeler’s knowledge of building science makes him/her a valuable member of the design team.

Is energy modeling for new buildings only?
Energy modeling can be a valuable investment for both new and existing buildings.

For new buildings, energy modeling is a powerful tool that can be used to aid design of the most cost-effective, energy efficient buildings. It allows you to determine if larger first costs are worth the expense by showing you the savings for different up-front strategies.

How would energy modeling work on an existing buildings?
For existing buildings, energy modeling can be used not only to identify where energy losses are occurring, but also identify the most appropriate measures for mitigating those losses. Using building energy modeling, opportunities for energy savings can be identified, and efficiency measures can be introduced and subsequently evaluated. Again, up front costs can be evaluated versus monthly utility savings.

Can energy modeling contribute toward LEED construction requirements?
Yes. Building energy modeling is required by an increasing number of both the private and public sector building energy efficiency programs, including LEED, Green Globe, Energy Star for Commercial Buildings, as well as state and federal tax credit programs. As your energy modeling partner, we can help guide you through these program requirements.

What's next?
Contact us to get started on your next project.

Southern Energy Management's team is comprised of the most experienced and knoweldgeable energy experts in the Carolinas, and is your best source for building energy modeling. Whether for commercial, public sector or industrial buildings, SEM’s team of building scientists is equipped to help developers/managers choose the most cost effective energy efficiency options in their building design and systems selection