1 Renewable energies Energy measurement and management solutions for the ISO standard with PowerStudio SCADA Energy efficiency technology
2 Energy Management System. ISO standard With the aim of providing support to the environmental policy of the European Union, and in response to the challenges posed by its strategy, the certifiable standard, EN Energy Management System was approved in first instance, which acted as a guarantee of the commitment to energy efficiency within an organisation. In August 2011, this standard went on to become the ISO standard, which thus made its field of action a global one.
3 Why the ISO ? The aim of the is to enable organisations to implement the systems and processes they require to improve the energy performance of their installations, with the clear aim of reducing greenhouse gas emissions and operational energy costs. To give greater coherence and guarantee in the implementation of an, companies obtain their certificate after undergoing the corresponding auditing and certification process. What is an Energy Management System? An Energy Management System is understood as referring to the set of inter-related or inter-acting elements that work to establish the energy policy, the energy objectives and the processes and procedures for achieving these aims. To do this, the standard is based on a system of Plan > Do > Check > Act for continuous improvement that includes the EMS (Energy Management System) in all company practices. Specifically: Plan Do Check Act Carry out an energy review, establish the base line, the energy performance indicators, targets, objectives and plans of action. Implement the necessary plan of action. Monitor and measure the processes and their operational features that allow for contrasts with the policy and its objectives, and report the results. Take the necessary actions to continuously improve energy performance and the EMS itself. Implications The concept of continuous improvement involves the for later analysis, to make it possible to check if the stated objectives are being fulfilled, and follow up the designed and implemented energy performance improvement plans of action. If not, the appropriate measures are then taken.
4 The Standard's Structure The phases of the standard are shown in the following diagram: Energy policy Energy Monitoring plan audit Continuous improvement This makes up the initial stage where the objectives to be fulfilled, the resources for its implementation and investments to be made are all defined. Planning Key points of UNE Analysis of energy supplies Analysis of horizontal technology and service processes Analysis of production processes»» Data measurement and acquisition»» Energy accounting process Analysis of proposals for improvement Development of improvements Identification and implementation of legal aspects and design of the plans of action to be developed. Management review Implementation and operation In this phase, management reviews the operation of the EMS to ensure its viability, suitable development and effectiveness. The previously designed plans of action are implemented, the required documents and internal communication plan are prepared and the necessary energy services, products, equipment and energies are acquired. Internal audit Verification Monitoring, Monitoring plan measurement and analysis This phase consists of the check and control points, such as the installation of a measurement system, monitoring, information processing and analysis, internal audits and assessment of compliance with the legal requirements. Who requests the Standard? Base line Significant energy use EnPis Effectiveness of the plan of action Assessment of total consumption with respect to what's expected Corrective and preventive action
5 Basic diagram of energy planning The following diagram shows how based on a series of inputs and outputs of energy planning, the key meeting points are structured. Planning inputs Energy review Planning outputs A Past and present of energy uses Analyse energy uses and consumption Identification of current energy sources B Identify areas of use and significant consumption ybase line yenpis yobjectives follow up yplans of action Relevant variables that affect energy use and performance C Identify opportunities to improve energy performance Important concepts of energy management A summary of the concepts in the ISO standard that are especially important for measurement systems and energy monitoring is attached below. Base line As such, this is understood as a quantitative reference for comparing energy performance. Energy efficiency This is understood as the relationship or ratio between the activities, goods or services of an organisation and energy expenditure. For example, in the case of a process industry, kwh/ units produced would be referred to. Energy variable Relevant magnitudes that significantly affect energy use and consumption. Energy performance indicator (EnPi) These indicators, previously defined during the preparation of the company's energy policy, express a quantitative value of the energy performance measurement. The value of energy consumption has to be related to a reference variable that allows it to be correctly interpreted. For example: kwh/m², kwh/m³, etc. Energy target Detailed, quantifiable energy performance requirement applicable to the organisation or a part of it deriving from the energy objective and that needs to be established and fulfilled to reach the objectives. Objective Specific output in accordance with the defined energy policy to increase the organisation's performance. Energy use Type of application in energy consumption. The standard also defines a series of basic concepts, such as the base line, energy performance indicator (EnPi), and energy uses, etc., for later processing and management. Energy performance Measurable results related to energy efficiency, use or consumption.
6 Energy measurement and management solutions for the ISO standard As seen in the previous points, implementation of the ISO standard goes through the definition, implementation and follow up of compliance with the energy objectives. To this end the standard clearly defines a basic point within the checking section: "monitoring, measurement and analysis". Therefore, for the energy performance to be correctly checked, it is necessary to implement measurement equipment, a communications network and PowerStudio Scada energy management software. CVM analyzers EDMk energy meters LM centralisers Local measuring equipment Communications infrastructure Energy use measurement screens Graphics of logs and base lines of energies and energy variables Invoicing reports of energy supplies, EnPi, uses and areas, etc. Need for information Transmission of information Energy supervision and management Base line EnPis Significant consumption Uses of energy, etc. Remote measuring equipment EDS energy telemanager
7 Measuring equipment Once the necessary measuring points have been defined, the equipment is chosen according to the needs of each area. Notable features of the equipment include: ycvm power analyzers. Equipment with the capacity to measure energy, power and electric variables such as voltages, currents, harmonics, etc. yedmk, MKD, EMS energy meters. Measurement equipment to measure active and reactive energy. ylm impulse centralisers. Variable integration equipment for electric, thermal, mechanical and other energy types. yeds energy telemanagers. Concentrators of energy consumption and variables designed for companies with distributed branches. Measurement diagram The purpose of the measurement diagram depends on the type of installation that is the aim of the standard, basically consisting of two types: Energy management system for a local management plant, where the aim is the division of the plant into areas and then into energy uses. Examples are industries, office buildings, malls, health centres, etc. Energy management system for remote centres. Energy telemanagement. In this case, the main consumption uses of a remote centre is measured and the information is automatically sent to the central control centre. Examples are company dealers, store chains, bank branches, network of primary health care centres, etc. Power Studio SCADA energy software For monitoring and analysis, the CIRCUTOR solution is based on the use of energy software by PowerStudio SCADA, which makes it possible to obtain the basic points the standard requires: ylogs of energy consumption and variables ydetermination of the base line ymeasurement of significant energy uses ymeasurement and calculation of EnPis yeffectiveness of the plan of action yassessment of total consumption with respect to what's expected. PowerStudio SCADA also has the following possibilities: yreal time display of technical parameters. ycontrol of energy costs. Consequent follow up of supply invoicing and the correct attribution of energy consumption costs. ycreation of reports that bring together the previously defined basic points to be controlled or others that the company considers relevant. This makes follow up of the energy objectives to be fulfilled and the measures taken possible. ypossibility of integration into a software for general management of the company via the incorporated XML server. ymulti-point software with web server. Consequent possibility of remote access.
8 Energy management system for a local management plant The following diagram shows the potential for energy management in a company, in line with the concepts established by the ISO standard. It shows different types of measuring equipment that make it possible to know the consumption in each area, consumption from energy use, energy variables, previously designated EnPis, as well as the energy sources supplying the installations. Centralised energy management is carried out in the same centre where the activity and the energy consumption take place. Areas EDMk CVM MINI Offices Production Section 2 Production Section 1 Uses CVM 1D EDMk EnPi kwh/m 2 kwh/unit S1 kwh/unit S2 COP Variables u S1 u S2 LM50-TCP Hr Tª Other supplies and energies m 3 H 2 O m 3 gas kwh therm.
9 Energy management system for remote centres. Energy telemanagement In this case, measurement is carried out according to use areas, energy variables, EnPi and energy sources as in the previous case, but with the added feature of being a remote system. This way, energy management can be carried out in companies with distributed centres, facilitating the work of the follow up auditor of energy consumption and planning. The benefit is the same for an internal or external auditor. Areas computer smart EDS Section 1. Offices Section 2. Production Capacitor bank Uses EDMk EnPi kwh/m 2 kwh/person kwh/m 2 kwh/person Variables Hr Tª Hr Tª
10 PowerStudio SCADA ISO application This page shows the displays of a PowerStudio SCADA application, where the basic points of the previously described standard are correctly followed up. Control of energy variables Control of energy by areas and uses Energy performance indicators (EnPis) Determination of base line according to logs Follow up of energy objectives
11 Products required to comply with the ISO standard Audits EDS AR6 Measurement Energy telemanager Through EDS the user can obtain and centralise the consumption of the installation. EDS has an integrated web-based server that enables any variable to be consulted without additional software. Portable power analyzer For three-phase networks with neutral current and leakage measurement. The AR6 is a high performance analyzer with VGA display, 10 measurement inputs, quality events log and PHOTO capture. Metering CVM MINI CIRWATT Three-phase power analyzer It measures more than 230 electrical parameters and has RS-485 Modbus/ RTU communications for contact with master software. Backlight display. DIN rail / panel. Multi-function energy meters Capable of satisfying the maximum needs of energy measurement systems, with other outstanding features such as quality, accuracy, safety and reliability. Single and three-phase, with PRIME system. EDMk Three-phase energy meter Active and reactive energy meter for up to 3 tariffs. Suitable for consumption control and cost attribution. Measuring in 4 quadrants. DIN rail. Measuring in medium and low voltage networks. MC Efficient transformers Three efficient transformers in a single enclosure. It offers significant advantages to the professional during the installation phase of power analyzers in modular panels. Energy management system PowerStudio SCADA Energy management software Powerful, simple and user-friendly software that makes total energy supervision possible for power analyzers, energy meters, earth leakages and complete control of different magnitudes in the industrial process field. Power factor correction Capacitor banks Power factor correction Designed for power factor correction in networks where the load levels fluctuate and power variations are of a few seconds. Filters Harmonic filtering Power factor correction, phase balancing and harmonic filtering. The perfect solution for resolving quality problems in industrial, commercial and service installations.
12 Renewable energies Energy measurement and management systems for the ISO standard with PowerStudio SCADA + information: Designed by: Image and Communications Department - CIRCUTOR, SA CIRCUTOR, SA - Vial Sant Jordi, s/n Viladecavalls (Barcelona) Spain Tel. (+34) Fax: (+34) Code: C2S CIRCUTOR, SA reserves the right to change any of the information contained in this catalogue.
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