Question-and-Answer Resource for the Building Energy Modeling Community
Get s tarted with the Help page
Ask Your Question
1

BEOpt TDV results check and baseline reference point

asked 2019-08-21 18:57:18 -0500

yolotom gravatar image

updated 2020-01-19 12:10:58 -0500

In BEOpt, I ran a SFam 2019 Title 24 baseline scenario for Bakersfield, CA, & then ran Optimization on various features except PV (that is the final step). See attached screen shot.

The results seem to be in the right direction, but I am not sure of the magnitude:

-- $700/yr Energy Related Cost savings (annualized)

-- over 40% TDV Savings (%/yr).

-- The lowest absolute numbers for TDV are < 100 MMBTU/yr (max on curve is 160), and < 75 MMBtu/yr for Source E (max on curve is > 110).

-- Both of the ERC and TDV savings seem high, especially the 2nd #. They may be higher than my earlier runs with fewer options, due to substantial synergies. I have seen Passive House designs that can go way beyond Title 24 minimums (to near zero electricity), suggesting that T. 24 sets a pretty low bar.

1) Do these numbers look reasonable, and is there an easy way to check that?

2) Re: the reference point, I need to confirm what point on the chart is the reference or starting point (Title 24 baseline). Is it the top left point at the beginning of the optimization curve?

TIA, Tom

Attached screen shot (please contact me if this does not work) : C:\fakepath\BFC Sfam Optimized no PV 2019-08-21 16.33.09.png

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted
1

answered 2019-09-04 14:22:42 -0500

Re: #2, the reference design is 0% on the x-axis.

edit flag offensive delete link more

Comments

is there a Y axis point too, to ID the base case?

yolotom gravatar image yolotom  ( 2019-09-04 16:26:50 -0500 )edit

Via the Select dropdown, you can choose the reference design.

shorowit gravatar image shorowit  ( 2019-09-04 16:42:40 -0500 )edit

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

 

Question Tools

1 follower

Stats

Asked: 2019-08-21 18:57:18 -0500

Seen: 128 times

Last updated: Sep 04 '19