Electricity + Control July 2019

round up

ENERGY MANAGEMENT + ENVIRONMENTAL ENGINEERING

Facilitating cleaner production and resource savings

or through an NCPC-SA programme. Within a year, the NCPC-SA team returns to measure resource savings achieved. Verified savings are documented in a company-specific case study. During its 2017/18 financial year, NCPC-SA conducted assessments in 149 companies nationally. Of these, 117 identified potential savings amounting to R374 million per year. Most of the savings potential lay in energy with significant potential also identified in water, where savings of 22 770 930 kilolitres (valued at more than R60 million) were identified. In the same year, the NCPC-SA verified actual resource savings in 31 companies, the bulk being energy savings through the IEE Project. Savings are reported as follows: - Water, 209 391 kl, R6 216 865 - Energy, 224 709 MWh, R161 619 641 - Materials, 35 826 t, R1 445 095 - CO 2 e, 35 017 t - Total savings: R169 281 601 Since 2013/14, the NCPC-SA has assessed 831 sites and identified R1 387 million per year in potential savings. With only 50% implementation and even allowing for some drop-off, these companies could save a cumulative R8.1 billion through RECP by 2023. Industrial Energy Efficiency Project The South African Industrial Energy Efficiency Project (IEE Project) has, since 2010, assisted industrial companies around the country to improve their energy efficiency. Now in its second phase (2016-2020) the project is ongoing

as a multi-stakeholder initiative, promoting increased adoption in industry of effective energy management systems, energy systems optimisation, and the Energy Management Standard ISO 50001 series. The IEE Project is funded by the Global Environment Facility (GEF) with co-funding through the South African Department of Trade and Industry. Implementation is carried out by the United Nations Industrial Development Organisation (UNIDO), the NCPC-SA, the Department of Energy and the South African National Energy Development Institute (SANEDI). The original phase of the IEE Project in South Africa (2010-2015) was the first of its kind and served as an international pilot project. Similar projects are nowoperational through UNIDO in 16 other developing and emerging economy countries worldwide. For more information visit: www.ncpc.co.za or www.ieeproject.co.za

The Production Centre South Africa (NCPC-SA) is a national programme of government that promotes the implementation of resource efficient and cleaner production (RECP) methodologies. It assists industry to lower costs through reduced energy, water and materials usage and improved waste management. It is hosted by the CSIR on behalf of the Department of Trade and Industry (dti). In its 2018 report NCPC-SA Acting Director, Victor Manavhela, said, “We strive to bring about real resource savings in companies of all sizes, and to equipmore individuals with the skills to implement long-term changes. I am encouraged by the growing number of companies opting to implement our recommendations and hope to see ever-increasing savings data as we continue the transition to a low carbon economy.” The NCPC-SA’s intervention in most companies begins with an assessment undertaken by a specialist, or under specialist supervision through the training or internship programmes. These assessments identify areas for improvement in resource use (energy, water and materials) and waste management in the plant. The assessment report presents the company with intervention options, highlighting the potential savings that could be achieved, per year, by implementing the identified opportunities. Implementation can be undertaken by the company, with NCPC-SA support, National Cleaner

As well as providing subsidised assessments and support for resource efficient production, the NCPC-SA offers RECP training and internships.

New energy meters measure and bill usage The newMID energy meters in the EMpro product range from Phoenix Contact are used to measure and communicate energy data for billing purposes. The measuring devices acquire key electrical parameters and communicate them via common interfaces. Product versions for direct current measurement save time and money. The energy meters have been tested in accordance with the European Measuring Instruments Directive. This enables the measured energy consumption to be charged to the relevant cost centres. The measuring devices record current, voltage, power and energy. For high currents, versions are available with a measuring input for current transformers. Currents up to 80 A are recorded quickly and directly using models with internal current transformers. All the energy meters provide for voltage to be measured directly. Other characteristic values are calculated in the processor and supplied via the interfaces. Communication in higher-level control systems is via M-Bus, Modbus/RTU or Modbus/TCP interface. In addition, all the devices have an S0 output. With a width of just 72 mm, the products are especially space-saving. Enquiries: Phoenix Contact.Tel: +27 (0)11 801 8200, email: info@phoenixcontact.co.za

The new MID energy meters record current, voltage, power and energy usage.

22 Electricity + Control

JULY 2019