The U.S Department of Energy (DOE) and the U.S. National Labs released updated versions of open-source whole-building energy modeling tools: the EnergyPlus engine and the OpenStudio software development kit (SDK) and application.
EnergyPlus 8.9.0 includes the ability to accept input in a JSON (Java Script Object Notation) format called epJSON. epJSON is derived from the existing IDF format and shares its object structure.
The JSON key-value structure supports schema validation as well as faster object and field lookups, and should make EnergyPlus schema evolution (e.g., the addition and deprecation of fields) simpler, DOE says.
EnergyPlus 8.9.0 includes:
- An On/Off thermostat model
- An option to disable “self-shading” effects
- The ability to import shading schedules for a file
- PVWatts calculations for estimating photovoltaic electricity production
- A data driven model for hybrid air conditioners
- Enhancements to data center modeling
- New sizing and annual reporting options
EnergyPlus is available at http://energyplus.net/.
An upgraded version of OpenStudio 2.5.0, with new features is available at http://openstudio.net/. A key new feature in this release is support for EnergyPlus EMS (Energy Management System) sensors and actuators.
Related Stories
University Buildings | May 30, 2015
Texas senate approves $3 billion in bonds for university construction
For the first time in nearly a decade, Texas universities could soon have some state money for construction.
Multifamily Housing | May 30, 2015
Energy Department releases resources to assess building energy benchmarking policies, programs
The new handbook demonstrates methodologies using real data from New York City.
Codes and Standards | May 27, 2015
Construction industry concerns with ‘Waters of the U.S.’ rule remain
EPA and Corps of Engineers rule may lead to a longer, more expensive permitting process
Codes and Standards | May 22, 2015
Rapid growth for environmental insurance in construction industry
The U.S. Environmental Protection Agency is paying closer attention to intrusion of potentially harmful vapors into commercial and residential buildings.
Codes and Standards | May 22, 2015
Roof collapse at Minnesota water park highlights failure to enforce codes
Rural areas say they can’t afford to enforce state-adopted building code.
Codes and Standards | May 22, 2015
U.S. House scuttles EPA plan to expand definition of waters in Clean Water Act
Construction industry officials said the rule would hamper developers, cost jobs.
Codes and Standards | May 22, 2015
First EPD covering PVC water and wastewater piping published
Benchmarks impacts of seven PVC pipe products across their life cycles.
Office Buildings | May 18, 2015
New ASHRAE standard offers test method to determine heat gain of office equipment
The standard will aid engineers in configuring cooling systems in office buildings.
Codes and Standards | May 7, 2015
Widespread damage from Nepal earthquake due to poor implementation of building code
Nepal’s code author says destruction was ‘inevitable.’
Codes and Standards | May 7, 2015
Lavish residential skyscrapers prompt concern over shadows
New York, San Francisco, Washington, D.C., and Boston among cities grappling with height regulations.
