This article is part of BD+C's special five-part Technology Report 2014: Top tech tools and trends for AEC professionals.
For more than a decade, the U.S. Department of Energy has made its EnergyPlus energy analysis and thermal load simulation program available for free to Building Teams.
Using EnergyPlus, AEC professionals can model heating, cooling, lighting, ventilation, and other energy flows, as well as water consumption, within a building design.
But without a major rewrite of the program since its creation, using EnergyPlus could exhibit slow performance and occasionally inaccurate analysis results.
The programming language it was originally written in, Fortran, simply could not keep up with advances in the hardware and software computing environment. FORTRAN is a language aimed at scientific programs to be run by scientists for days and weeks on supercomputers, not by building designers running multiple iterations of a design idea in a matter of a few hours.
Because it wasn't well integrated with common architectural design software, EnergyPlus never gained widespread adoption by architects working in the conceptual stage of a project.
At Greenbuild 2013, Autodesk (working pro bono) turned over brand new engine source code to the DOE to create a completely rewritten EnergyPlus for a forthcoming version. The new code will be made available under the DOE’s open source license.
Autodesk’s software engineers translated EnergyPlus—more than 600,000 lines of code—to C++, a modern, object-oriented language that is better supported on mass-market hardware and software platforms.
As a result, a larger ecosystem of developers and vendors will be able to contribute updates to the code in order to improve performance and decrease the time required to run energy model simulations.
The forthcoming version will also work better with BIM applications, auditing tools, and energy dashboards after it is released and developers are able to work on improved integrations.
For more, visit: http://apps1.eere.energy.gov/buildings/energyplus.
Related Stories
| Dec 17, 2010
Toronto church converted for condos and shopping
Reserve Properties is transforming a 20th-century church into Bellefair Kew Beach Residences, a residential/retail complex in The Beach neighborhood of Toronto. Local architecture firm RAWdesign adapted the late Gothic-style church into a five-story condominium with 23 one- and two-bedroom units, including two-story penthouse suites. Six three-story townhouses also will be incorporated. The project will afford residents views of nearby Kew Gardens and Lake Ontario. One façade of the church was updated for retail shops.
| Dec 17, 2010
ARRA-funded Navy hospital aims for LEED Gold
The team of Clark/McCarthy, HKS Architects, and Wingler & Sharp are collaborating on the design of a new naval hospital at Camp Pendleton in Southern California. The $451 million project is the largest so far awarded by the U.S. Navy under the American Recovery and Reinvestment Act. The 500,000-sf, 67-bed hospital, to be located on a 70-acre site, will include facilities for emergency and primary care, specialty care clinics, surgery, and intensive care. The Building Team is targeting LEED Gold.
| Dec 17, 2010
Arizona outpatient cancer center to light a ‘lantern of hope’
Construction of the Banner MD Anderson Cancer Center in Gilbert, Ariz., is under way. Located on the Banner Gateway Medical Center campus near Phoenix, the three-story, 131,000-sf outpatient facility will house radiation oncology, outpatient imaging, multi-specialty clinics, infusion therapy, and various support services. Cannon Design incorporated a signature architectural feature called the “lantern of hope” for the $90 million facility.
| Dec 17, 2010
Cladding Do’s and Don’ts
A veteran structural engineer offers expert advice on how to avoid problems with stone cladding and glass/aluminum cladding systems.
| Dec 17, 2010
5 Tips on Building with SIPs
Structural insulated panels are gaining the attention of Building Teams interested in achieving high-performance building envelopes in commercial, industrial, and institutional projects.
| Dec 17, 2010
How to Win More University Projects
University architects representing four prominent institutions of higher learning tell how your firm can get the inside track on major projects.
| Dec 13, 2010
Energy efficiency No. 1 priority for commercial office tenants
Green building initiatives are a key influencer when tenants decide to sign a commercial real estate lease, according to a survey by GE Capital Real Estate. The survey, which was conducted over the past year and included more than 2,220 office tenants in the U.S., Canada, France, Germany, Sweden, the UK, Spain, and Japan, shows that energy efficiency remains the No. 1 priority in most countries. Also ranking near the top: waste reduction programs and indoor air.
| Dec 7, 2010
Are green building RFPs more important than contracts?
The Request for Proposal (RFP) process is key to managing a successful LEED project, according to Green Building Law Update. While most people think a contract is the key element to a successful construction project, successfully managing a LEED project requires a clear RFP that addresses many of the problems that can lead to litigation.
| Dec 7, 2010
Blue is the future of green design
Blue design creates places that are not just neutral, but actually add back to the world and is the future of sustainable design and architecture, according to an interview with Paul Eagle, managing director of Perkins+Will, New York; and Janice Barnes, principal at the firm and global discipline leader for planning and strategies.