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Old 03-20-2012, 07:45 PM   #1
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Default Load Shedding company

http://www.ezesys.com/ Anyone ever use these guys for load shedding applications. I talked to them on the phone and it has 4 inputs and 2 outputs and costs about $500 plus $7 per month if they store your data on the cloud.
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Old 03-20-2012, 07:47 PM   #2
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4 in and 2 out? Not sure I could do very much with that.
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Old 03-20-2012, 08:10 PM   #3
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Well they say it's expandable on the output side and if you're dong much with it you use modbus on the input up to ....i'm thinking 40 devices.
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Old 03-20-2012, 08:38 PM   #4
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We do a lot of work for enernoc, the have a few options, and based in customers ability to shed load, they offer a monthly rebate, provided through utility. Based in load shedding for peak demand. Enernoc provides the equipment, the installation, and monitoring. It's a good deal for customers who can shed load when requested. They can remotely control most any function from gen start, gen transfer. To shedding desired loads.
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Old 03-20-2012, 08:47 PM   #5
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Here there are no rebates or assistance available. What you gain is reduction in demand charges.
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Old 03-20-2012, 11:51 PM   #6
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http://www.ezesys.com/ Anyone ever use these guys for load shedding applications. I talked to them on the phone and it has 4 inputs and 2 outputs and costs about $500 plus $7 per month if they store your data on the cloud.
From a hardware standpoint you could get more capability than that with a Smart Relay for a little over $100. Some of them have pre-made software routines that you could implement, but for the most part you'd have to do your own programming. So that's really what you are paying for from this outfit, the software interface they developed. That hardware is worth maybe $50. The big question with things like this is, where will they be in 2 years? 5? 10?

As an example, just a few years ago a LOT of people in the Solar Generation biz began moving away from using industry standard SCADA software packages and moved over to a glitzy and cheap "cloud based" sofware SCADA system called "Fat Spaniel". But because Fat Spaniel gave everything away cheap, they didn't have enough money to stay in business. Now their remaining assets and IP have been scarfed up by a bigger company who has no interest in supporting old customers who were paying too little for the services. So all that "cheap" software is unsupported; everyone who bought into it is now their own tech support department, and THAT is costing them big time.
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Old 03-21-2012, 12:34 AM   #7
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How long would it take me to learn to program the smart relay? It seems like the charts, web based control etc would have some perceived value to the customer. I wish I could have that functionality just on a pc. I was looking at Brayden Automation's website but haven't called them.
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Old 04-19-2012, 02:55 PM   #8
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From a hardware standpoint you could get more capability than that with a Smart Relay for a little over $100. Some of them have pre-made software routines that you could implement, but for the most part you'd have to do your own programming. So that's really what you are paying for from this outfit, the software interface they developed. That hardware is worth maybe $50. The big question with things like this is, where will they be in 2 years? 5? 10?

As an example, just a few years ago a LOT of people in the Solar Generation biz began moving away from using industry standard SCADA software packages and moved over to a glitzy and cheap "cloud based" sofware SCADA system called "Fat Spaniel". But because Fat Spaniel gave everything away cheap, they didn't have enough money to stay in business. Now their remaining assets and IP have been scarfed up by a bigger company who has no interest in supporting old customers who were paying too little for the services. So all that "cheap" software is unsupported; everyone who bought into it is now their own tech support department, and THAT is costing them big time.

Well, I'm back to this and hoping to get advice on a starting point to learn a system and which system do I want to learn. I have a supply house that's pretty helpful with Siemens and reasonably priced.
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Old 04-19-2012, 07:42 PM   #9
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Well, I'm back to this and hoping to get advice on a starting point to learn a system and which system do I want to learn. I have a supply house that's pretty helpful with Siemens and reasonably priced.
Then look at the Siemens LOGO! (the exclamation point is actually part of the product name...). A base unit with I think 8 in and 4 relay outputs is around $100+ and if your supplier is good, they will occasionally have classes on programming in which you pay for the class and get a relay for free along with the software and cables etc. You can program them from the front keypad, but it's a little odd and hard to get used to. Buy the software, it lets you program with mouse clicks on graphic icons, or ladder diagrams if you understand that easier. It also allows you to print out the program which is good for later on. I believe the LOGO also offers free pre-programmed applications that you can download from a website that have load shedding options etc.
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Old 04-19-2012, 08:08 PM   #10
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The hell is load shedding?
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Old 04-20-2012, 12:17 AM   #11
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The hell is load shedding?
You look at your loads and decide what is important and what is not, then set up a controller to monitor the overall power consumption. When you start to approach some level of power consumption that is going to trigger a higher cost, like a Peak Demand Penalty, you turn off, or "shed", non-essential loads to avoid the penalty or surcharge. Like an animal sheds it's coat when it no longer needs it.
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Old 04-20-2012, 12:24 AM   #12
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I hate load shedding. Hair all through the panels. It's a mess.
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Old 04-20-2012, 12:31 AM   #13
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I perform load shedding every morning around 6:30 am or so.
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Old 04-20-2012, 01:57 AM   #14
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I hate load shedding. Hair all through the panels. It's a mess.
Then I have a load shedding tape to pick it up so I can able look in the panel better.

Merci,
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Old 04-20-2012, 09:19 AM   #15
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Yah, i drop a big load every other day.

Hooked up a household generator that had relays to shed the AC units.
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