- March 20, 2011
Automation.com, March 2011
By Bill Lydon, Editor
The intent of this energy initiative is to create a comprehensive approach to the optimization of energy usage for the industrial consumer that is scalable, open and inclusive for both users and suppliers.
By Bill Lydon, Editor
At the 2011 ODVA annual meeting Katherine Voss, ODVA Executive Director, presented the organization’s vision of energy optimization for the industrial consumer. The intent of this energy initiative is to create a comprehensive approach to the optimization of energy usage for the industrial consumer that is scalable, open and inclusive for both users and suppliers. The ODVA has coined the term, Optimization of Energy Usage (OEU™) to describe their efforts related to energy in helping industrial consumers meet overall business goals and achieve greater societal goals for sustainability.
The first step of a new initiative was a press release on February 7, 2011, “ODVA has launched a new energy initiative, in cooperation with major suppliers including Cisco Systems, Rockwell Automation and Schneider Electric, to transform the industrial energy resource allocation model.” View Release.
Katherine Voss put the ODVA approach in perspective, “The OEU initiative is being built from the bottom up taking a holistic approach to improve and optimize the use of energy in industrial plants and processes."
The ODVA vision for OEU spans the entire energy path from industrial device to all energy producing sources including commercial utility and other sources.
Voss further explained “The goal of ODVA's energy approach is to simplify the ability to understand energy consumption and enable control methodologies to optimize energy usage throughout the industrial ecosystem from the plant floor to the grid.” She announced that the work to define OEU has been going on for a year and thanked the Concept Team that included:
- CISCO Systems - Bryce Barnes, John Parello, Venkat Pothamsetty; Mark Wiley
- Schneider Electric - Rudy Belliardi, Fred Cohn; Mike Crowley
- Rockwell Automation - Paul Brooks, John Caspers, Rich Morgan; Cliff Whitehead
- Molex - Michael Frayne; Eric Scott
- ODVA - Adrienne Meyer; Katherine Voss
OEU Development Phases
The group defined three phases to the OEU concept development - from monitoring to broad multi systems/site dynamic management. The long term vision is interaction with the SmartGrid. It was stated that ODVA will make their data models available outside of the CIP (Common Industrial Protocol) model for use in other systems.
Phase 1: Awareness – this will be accomplished with energy objects and services to enable assets to report and aggregate energy information in a standardized way. Timeframe: Now – 2012
Phase 2: Consumption – Energy functions to manage energy consumption and control peak demand. Timeframe: 2012-2014
Phase 3: Transaction – Dynamic management of transaction mechanisms across industrial domains. Timeframe: 2013-2020
First Step - CIP Objects
The starting point for ODVA’s energy initiative is to ensure that energy data can be seen throughout the production domain so industrial consumers have the information they need to solve energy consumption and efficiency problems. ODVA has formed the Energy Applications Special Interest Group (SIG), to develop specification enhancements for energy applications utilizing the Common Industrial Protocol. The first output is expected in 2012.
The first work, described by SIG members at the annual meeting, is to define CIP objects for energy information. Rich Morgan from Rockwell Automation described initial activity, “The first draft of the specification enhancements has three objects in it, each of which has a handful of required attributes which standardizes the way that an OEU enabled asset can present its energy usage to a higher level analysis tool, an HMI, or enterprise system.” “It really provides a way to drill down into an enterprise, down to the shop floor level to make it easy, simple and inexpensive for an owner or manger of an operation to see what is happening at the macro level and the microscopic level.” He explained there are three objects. The first is the generic object that reports energy in normalized units regardless of what the resource. Second, there is an electrical energy object that includes parameters such as three phase, alternating current, and reactive power. The electrical energy object will have optional parameters to accommodate all the data available in a fully featured power monitor. Third, a non-electrical energy object provides a means of reporting many other types of energy usage such as natural gas, fuel oil, or other energy. Initial enhancements of the ODVA specifications are expected to be available in 2012.
Thoughts & Observations
Energy and sustainability are a hot topic in industry these days - anything that makes it easier to achieve conservation goals in these areas is helpful. The full scope described by the ODVA OEU initiative is to manage energy consumption, control peak demand, and manage dynamic energy transactions. There is not enough detail at this time to understand the full intent of the initiative. This could be simply providing information objects to support a full energy management and optimization implementation; or a complete systems approach employing active objects for a complete energy management and optimization implementation.
Understanding where and how energy is used is the first step in any energy optimization and conservation efforts and the first CIP objects being defined will help as products are introduced to the market.
Gary Workman of General Motors asked a reasonable question in the meeting, “Why are the objects being defined CIP objects, I see nothing that is CIP specific about energy conservation objects?” “We ought to be defining some network technology-neutral energy objects; then after they are defined possibility translate them into CIP if it is more efficient to convey them that way. It seems to me that I bought into the idea of the connected, converged, infrastructure network and what I have is an IP enabled infrastructure. And what I want to do is exchange energy conservation information regardless of the networking technology I am using in that IP enabled infrastructure.”
ODVA panel members responded that they are defining data models that could be adopted by other organizations and looking for groups to collaborate on data models.
Having done a great deal of work in energy optimization and conservation, I find the focus on more easily acquiring energy information from devices as valuable. The next step of managing energy consumption and controlling peak demand requires facility level control. Protocols can make it easier for optimization logic to execute strategies but this is only part of the puzzle.
The ODVA vision described for Optimization of Energy Usage (OEU) is broad in scope, spanning the entire energy path from industrial device to all energy producing sources, including commercial utility and other sources. The first specifications will be available in 2012 at which point the depth and features of OEU may become clearer.
A good resource for information and tools for industrial energy management is the U.S. Department of Energy Industrial Technologies Program (ITP) website: http://www1.eere.energy.gov/industry/tech_assist/index.html.
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