Case Studies of Energy Management Systems


Below there are some typical case studies, involving energy management for building complexes (office blocks), a cement factory, a shopping center and a  pharmaceutical production company.


Greenhouse Office Building





System Topology





Customer requirements and completed solutions


  • •  Collect data from electrical, water andheat meters
  • •  Information can be accessed by web browser interface
  • •  Monitoring of consumption and subscribed-power optimization
  • •  Defining energy consumption per cost allocation places
  • •  Monitor and calculate applied green energy performance
  • •  Quick report building web and desktop environments
  • •  Schedule report creation for management site
  • •  Dashboard slideshow for Showroom



Case study on Redundant system Building




Tiszai Vegyi Kombinat (in short TVK- Tisza Chemical Group Ltd Co) is a Hungarian manufacturer of olefins and polyolefin such as polyethylene and polypropylene. Feedstock is supplied by MOL of which TVK is a subsidiary and which also processes a major portion of resulting by-products from the olefins plant.


The company’s legal predecessor, Tiszavidéki Vegyi Kombinát, was built in the 1950s, involving the excavation of 700,000 m3 of soil and the installation of one million m3 of material.


The Petrochemical Development Project, worth EUR 430 million, implemented in record time even by international standards, TVK has successfully expanded its capacity in three key areas. The production process includes two major stages: producing monomers and polymerisation.


Completion of the petrochemical expansion project has provided economies of scale that enables TVK to retain a leading position in central and Eastern Europe and to strengthen its market presence in the European Union. Ethylene and high density polyethylene (HDPE) production capacity has been doubled while polypropylene capacity has also been expanded.


Tisza Chemical Group Ltd Co also supplies feedstock to several companies engaged in plastic processing operations. The Company's products are supplied to the domestic market and exported to Central and Eastern Europe.


TVK used AVReporter Energy Management Software to create the most suitable Energy Management System.


The following areas were also addressed with the requirements according


SQL Server Datacentre Maintenance:


  • •  frequency of performing the maintenance duty is 3 months
  • •  control of capacity
  • •  index examination
  • •  elevation of index fragmentation
  • •  analysis of logged faults and their correction
  • •  the checking of the saving security
  • •  checking the working order of the drivers
  • •  load testing
  • •  checking of the data deletion
  • •  archiving of the system logs and event log  



Database back-up:


  • •  transaction log hourly back-up
  • •  differential back-up every other day
  • •  full back up every week  



Key elements for system planning and implementation


When building such a huge or similarly complex energy management system special attention should be paid to the following system characteristics:


  • •  the HDD performance and the number of IO expressions dictate high attention to detail when logging huge amount of data
  • •  when handling a huge database it is advised to handle the operation system, the SQL database and the SQL Logging data  in a separate RAID
  • •  also it is highly important when building such a huge and complex system to choose a hard drive with the right speed. Slow hard drives it is not possible to complete virtual calculations between the SQL data.
  • •  when using huge quantities of virtual meters take advantage of the Realtime Virtual Meters instead of the Advanced Virtual Device Manager, as this one runs the calculations between the data stored in the SQL data base, which means more demanding IO expressions and strain on the SQL server. The Realtime Virtual Meter runs the expressions in the memory, so needs a lot less capacity.
  • •  when operating high numbers of pre-scheduled reports, the report generation should not be all done at once in avoidance of the possible overloading of the SQL server.
  • •  the old and not any more necessary data’s deletion should be done regularly in smaller batches to keep the performance of the SQL server steady. Also the deletion for huge data quantity can block the SQL server’s logging.









Shopping Centre Energy Management - Tenant Billing





Customer requirements and completed solutions



  • •  Handling the different types of consumption (electric energy, gas, water, sewage) using one common system and interface
  • •  Easy to manage user-friendly environment (multi-language support for reporting, German to Management, Hungarian to local engineer)
  • •  Cost allocation according to internal cost centres with invoicing (Bill Verification,Financial Analysis)
  • •  Providing tax authority approved invoicing to retail tenants with data export to their existing ERP system (SAP)
  • •  Flexible custom-tailored solutions according to the requirements of the user:  support of individual reports, local requirements - language, currency, date format, individual layout, application of individual calculation methods



Energy Management System for TEVA Pharmaceutical Industries Ltd


Established in 1901, today TEVA ranks among the 10 top pharmaceutical companies in the world. Headquartered in Israel, TEVA is active in 60 countries, with over 46,400 dedicated employees worldwide.


As a global pharmaceutical company, TEVA spearheads the development, production and marketing of a wide range of specialty medicines, generic and OTC products, active pharmaceutical ingredients (API) and novel new therapeutic entities.




The following requirements were identified, when creating the most suitable energy management solution


  • •  Collection of measurement data, checking power quality - avoiding short service life of equipments Implementation of building/production plant monitoring and maintaining solutions (e-mail alarms, alarms and events logs, keeping track of events and event change)
  • •  Monitoring consumption and controlling electric system (keeping track of position indicators and alarms) executing switching functions- system monitoring and simplifying maintenance tasks
  • •  Analyse and isolate the source of power quality problems (EN50160)
  • •  Defining energy consumption and production cost per production unit
  • •  Monitor and calculate applied energy performance
  • •  Information can be accessed by web browser interface
  • •  Multi-User and Security Access Level Management
  • •  Quick report building web and desktop environments
  • •  Schedule report creation for management site
  • •  Analysis of the data by applying simple mathematical and statistical methods
  • •  Integrated data visualization on one interface








Multi site Enterprise Energy Management application for TESCO


TESCO is one of the world’s largest retailers with over 500,000 colleagues, serving millions of customers a week in their stores and online.

When looking for the right energy management solution primarely for their stores in Easter Europe, they choose AVReporter Energy Management Software.






The following tasks and requirements were identified


  • •  Collect data from different type of meters and data concentrators (electrical, water and heat meters, etc.)
  • •  Reduce peak demand and power factor penalties
  • •  Monitoring of consumption and subscribed-power optimization
  • •  Cost-allocation and sub-billing
  • •  Monitor and calculate applied energy performance
  • •  Energy Performance Certification of Buildings - A policy tool to improve energy efficiency
  • •  Information can be accessed by web browser interface
  • •  Multi-User and Security Access Level Management
  • •  Quick report building web and desktop environments
  • •  Schedule report creation for management site
  • •  Analysis of the data by applying mathematical and statistical methods
  • •  Integrated data visualization on one interface
  • •  Collection of measurement data of more sites in one system (centralized energy management) – application of integrated energy contracts



Project scope



  • •  Communication with data concentrators
  • •  Communication with different type of revenue meters of energy supply companies
  • •  Supply and configure AVReporter Intermediate Edition and WebPublisher
  • •  Connectivity to different data sources
  • •  Creating multisite applications, integrating more databases






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