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Data centers, dedicated computing and digital storage facilities, power a significant portion of the modern economy. Large companies operate massive data centers that underpin much of our telecommunications system and the internet. Data centers also represent a significant portion of domestic electricity use, accounting for 1.8 percent in 2016, or slightly less than...

New York’s recently introduced law LL97 will require many retrofit projects. How can energy modeling be made more scalable and more manageable for retrofit projects?
-Big Apple Energy Modeler

Dear Big Apple,

First off, let me start by saying that I think that ...

The US Department of Energy (DOE) Building Technologies Office (BTO) is excited to introduce the inaugural cohort of Innovation in Buildings (IBUILD) Graduate Research Fellows.

The ...

The Ecosizer is a free educational tool for sizing central water heating systems with heat pump water heaters (HPWHs) in multifamily buildings.

Funded by Southern California Edison (SCE) and Sacramento Metropolitan Utility District (SMUD), and built by Ecotope Inc., the tool is designed to support the building industry adoption of HPWHs to improve energy...

Critical decisions on building form, massing, and envelope construction and configuration greatly impact a building’s energy and daylighting performance and must be made early in the design process. Using Building Energy Modeling (BEM) and other analyses, design teams can evaluate many different options to inform these decisions, reducing costly late-stage design...

Last fall, the U.S. Department of Energy and its National Laboratories released updated versions of their open-source, whole-building energy modeling tools, the EnergyPlus™ engine, and the OpenStudio™ Software Development Kit (SDK).

EnergyPlus 9.4.0 continues to emphasize object-oriented refactoring and defect resolution. The current version includes a...

The Building Decarbonization Code is a groundbreaking tool aiming to deliver carbon neutral performance. The new code language from NBI serves as a building decarbonization overlay to the 2021 International Energy Conservation Code (IECC). It is designed to help states and cities working to mitigate carbon resulting from energy use in the built environment, which...

Building energy modelers, architects, and high-performance building incentive program organizers to are needed to help update ASHRAE Standard 209, first published in 2018. The purpose of Standard 209 is to “define minimum requirements for providing energy design assistance using building energy simulation and analysis.”

The Standard has been referenced by AIA,...

Thanks to all who participated in the 18th Annual U.S. Department of Energy ...

How do you effectively communicate with architects and engineers who may be resistant to giving up control over the design, and in general to be sure the energy modeler and HVAC design are on the same page?
- Want to be Teacher

Dear Teacher,

In the Northwest, I’d probably use a craft beer. California? Wine, of course. Here in the Southeast, bourbon...

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