[EnergyPlus_Support] E+ Version 1.2.1?

[Drury.Crawley@xxxxxxxxxx]

Some of you may be wondering why our web site (www.energyplus.gov)
says that Version 1.2.1 of EnergyPlus will be out in September ....
yet it's the day before the end of the month and no new version.

A number of significant events got in the way (not to mention the
4 hurricanes going through Florida disrupting part of our team!)...
but we're tying up the lose ends and hope to be able to release it
in the next few days.  Maybe Friday, October 1 but more likely early
next week.

(You'll be the first to get email about it.)

Let me give you a preview of some of the cool new stuff:

Datasets
* Default fluid properties for water, ethylene glycol, and propylene glycol
* Example input files for all new features
* More than 100 new international weather locations including data for
Belize, Cuba, El Salvador, Guatemala, Honduras, Maldives, Nicaragua, Spain,
and Sri Lanka in the EnergyPlus/ESP-r weather format.  (More than 680
locations available worldwide.)

Geometry/Windows/Walls/Shading
* Multi-sided polygons

Daylighting
* Skylight Light Wells
* Daylighting through interior windows
* Translucent Glass

Zone Model
* Improved displacement ventilation interaction with thermal mass

COMIS
* Significant decrease in execution time

HVAC
* Plate heat exchanger component added to facilitate realistic
configuration of hydronic systems
* Two- and four-pipe induction units
* Variable-speed fan-powered VAV reheat terminal units
* DOE-2.1E electric chiller model
* Dual Setpoint Controls for Plant Loop for Water Loop Heat Pump
* New Water Cooling Coil (replaces Simple Coil) which is completely
autosizable, options for wet/dry coil evaluation using cross- or
counter-flow heat exchanger configurations
* Glycol concentrations can be specified

Economics
* Utility rate calculations
* Project construction cost estimating

Output
* Ventilation load report
* Each zone defined as layer in DXF
* Advanced Runtime Variables can be requested

Utilities
* Major updates to the IDFEditor including ability to open multiple IDF
files and copy/paste objects between files
* Major updates to EP-Launch including ability to select a group of
simulations to run and maintaining a history of simulations.
* WeatherConverter now reads new format (TMY3) developed under the SWERA
project (swera.unep.net).

Documentation and Guides
* Input/Output Reference and Engineering Reference updated and extended for
all new features and updates.
* More than 2,000 pages of documentation.

And speed improvements throughout.

Thanks for your patience--

The EnergyPlus Development Team





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