RE: [EnergyPlus_Support] EMS - Exterior lighting control

["Jean Marais jeannieboef@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>]

I'm quite sure you need to include logic to account for winter summer local time shifts if your country has them. Remind me in Jan, I'll send over a script.

Am 21.12.2017 3:57 vorm. schrieb "'Jones, Christopher' christopher.r.jones@xxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>:

 

Jim,

Thanks for your reply. Astronomical Clock works well. I was wanting to take into account sky conditions, setting the operation based on diffuse solar level. Iâ??ve been using IES VE and I create a formula profile and a time switch profile.. If diffuse solar is less than threshold ? on, else ? off. .

 

 

 

Christopher R. Jones, P.Eng.

Technical Specialist

Sustainability & Energy

 

T +1 416-644-0252

 

2300 Yonge Street, Suite 2300

Toronto, ON M4P 1E4 Canada

wsp.com

 

 

Please consider the environment before printing...

 

 

From: EnergyPlus_Support@yahoogroups.com [mailto:EnergyPlus_Support@yahoogroups.com]
Sent: Monday, November 27, 2017 8:52 AM
To: EnergyPlus_Support@yahoogroups.com
Subject: Re: [EnergyPlus_Support] EMS - Exterior lighting control

 

 

Dear Chris,

There is probably no need to use EMS. Consider:

1. You may assign a schedule to the exterior lights in that object (e.g., OFF 0000 - 0600)
2. You may also define the "Control option" (with or without a schedule) as "Astronomical Clock". This turns on the lights at sunset and off at sunrise - latitude and seasonally adjusted!

 

On Tue, Nov 21, 2017 at 12:21 PM, 'Jones, Christopher' christopher.r.jones@xxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@yahoogroups.com> wrote:

 

I am completely unfamiliar with EMS but it seems like it would be a valid way to control exterior lighting.

 

A typical control for exterior lighting is using a photocell but disabled between midnight and 6:00 am. The EMS Sensor could be Output:Variable,*,Site Diffuse Solar Radiation Rate per Area,hourly; !- Zone Average [W/m2].

 

But I am not sure of how to combine this with a clock schedule to disable the lights between midnight and 6:00 am?

 

 

 

 

Christopher R. Jones, P.Eng.

Technical Specialist

Sustainability & Energy

 

T +1 416-644-0252

 

2300 Yonge Street, Suite 2300

Toronto, ON M4P 1E4 Canada

wsp.com

 

 

Please consider the environment before printing...

 

 

 

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Posted by: Jean Marais <jeannieboef@xxxxxxxxx>

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