Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question
3

-1.#IO error value when running battery storage in E+

asked 2017-05-11 13:22:19 -0600

kmpiscopo gravatar image

updated 2017-06-04 10:21:43 -0600

Has anyone encountered the -1.#J or -1.#IO error value when running EnergyPlus?

I made a building model with rooftop PV in OpenStudio, and am now using the IDF editor to add on-site battery storage using the Electric Load Center Distribution manager. I have added the following items to the ElectricLoadCenter:Distribution object: (1) ElectricLoadCenter:Generators (containing the list of my PV generators), (2) ElectricLoadCenter:Storage:Battery, (3) ElectricLoadCenter:Transformer, (4) ElectricLoadCenter:Inverter. The electric buss type for the load center distribution manager is DirectCurrentWithInverterDCStorage.

The model runs without any error messages, but the Electric Loads Satisfied table in the results page lists -1.#IO as the value for Power conversion, total on-site electric sources, and electricity coming from utility. I'm not quite sure how to interpret this, and it's hard to de-bug without any error messages to work from.

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted
3

answered 2017-05-11 15:26:03 -0600

HI @kmpiscopo

I ran into this error when I was working with ChillerHeater:Absorption:DirectFired component in Energyplus. Refer to this question of mine. I realized that this was caused by autosizing the flowrates in chillerHeater:Absoption:DirectFired component. The html report was showing the correct values when I hardsized the values. I suggest going through the model and looking which of the autosized parameters is causing the error. I was able to figure it out pretty easily when the same issue showed up in my last project by going through all the components that were using electricity in the model.

Hope that helps. Raghu

edit flag offensive delete link more

Your Answer

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

Add Answer

Training Workshops

Question Tools

1 follower

Stats

Asked: 2017-05-11 13:22:19 -0600

Seen: 135 times

Last updated: May 11 '17