Newsline / News

BPI Publishes Delta Standard

MALTA, N.Y. — The Building Performance Institute Inc. (BPI) announced that BPI-2400-S-2012: Standard Practice for the Standardized Qualification of Whole-House Energy Savings Predictions by Calibration to Energy Use History, also known as the “Delta Standard,” has been published as an American National Standards Institute (ANSI) standard.

The Delta Standard specifies a process for the calculation of standardized predicted savings: the difference (delta) between the modeled energy usage before and after an upgrade using approved building energy use simulation software. The process uses actual home energy bills to predict savings, and provides a set of standardized operating conditions to be used in the final calculation of predicted savings. The standard applies to existing detached single-family dwellings and townhouses that meet the specific criteria detailed in the scope.

“The Delta Standard will increase homeowners’ confidence in energy savings projected by simulation software used by home performance contractors for homes that undergo energy efficiency retrofits,” said Larry Zarker, CEO, BPI. “By using actual utility bills to measure pre-retrofit energy consumption, this approach sets realistic boundaries on savings predictions. This is truly a groundbreaking standard for the home performance industry.”

“As the first standard of its kind available to home performance contractors, BPI-2400 establishes a critical rule-set for validating the energy use and savings predictions produced by energy simulation tools,” said Courtney Moriarta, chair, BPI’s Standards Technical Committee. “This will enable contractors and program administrators alike to proceed with greater confidence that predicted savings estimates will be realized in actual post-improvement fuel use.”

For more information on BPI’s Delta Standard, visit http://bitly.com/VO0Lgi.

Publication date: 11/5/2012

Did you enjoy this article? Click here to subscribe to The NEWS Magazine

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

2014 Energy Efficiency Forum

Highlights from the 25th annual Energy Efficiency Forum in Washington, D.C.

Podcasts

NEWSMakers: John Missell

John Missell, vice president and COO of Spectrum Design, joins the program to discuss how his company has utilized geothermal technologies, and we examine the future of renewable energy resources. Posted on Aug. 15.

More Podcasts

ACHRNEWS

NEWS 08-18-14 cover

2014 August 18

Check out the weekly edition of The NEWS today!

Table Of Contents Subscribe

Prohibiting HFCs

EPA is proposing a rule that would prohibit some HFCs in select refrigeration applications. Do you agree with this move?
View Results Poll Archive

HVACR INDUSTRY STORE

plumbing-hvac.gif
2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

More Products

Clear Seas Research

 

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

DON'T MISS A THING

Magazine image
 
Register today for complete access to ACHRNews.com. Get full access to the latest features, Extra Edition, and more.

STAY CONNECTED

facebook icontwitter iconyoutube iconLinkedIn i con