Energy Storage System NEC Energy Storage Application Benefits NEC ESS solutions can be used to adjust severe power fluctuations, Smart Grids frequency regulation, serve as an emergency power source during • energies and off-peak generated electricity disasters and reduce electricity bills. NEC EMS (Energy Management System) with ESS can be used to reduce peak demand load of users Provide stable energy supply while integrating renewable • Peak power demand solution by peak shaving and smoothing out their energy consumption. Smart Buildings • Harnessing Renewable Energy with Lithium-ion Technology Energy Storage System (ESS) Reduce CO2 emissions by monitoring energy consumption using highly efficient equipment and devices • Office Buildings Enable automated control of equipment like air conditioning and lighting – eliminating wasteful energy usage Renewable Energy • Help to optimise the balance between electricity supply and demand Homes Smart Homes Transmission and Distribution Equipment Factories Commercial Facilities • • • Enabling peak shift, thus reducing electricity bills Serves as a backup power source in case of emergency Interconnection with solar power technology Supply Side Demand Side Power transmission/ distribution Telecom Exchange/Towers Commercial/Office Residential Application Power quality Peak hour reduction/ back-up/renewable energy integration Peak hour reduction/ peak shift/back-up Peak shift plan/ back-up System size 1 MWh ~ 150 MWh 10 KWh ~ 50 KWh 10 KWh ~ 300 KWh 1 KWh ~ 15KWh About NEC Asia Pacific Pte Ltd Singapore based NEC Asia Pacific is the regional headquarters for NEC Corporation (HQ in Japan) in the Asia Pacific region (South and Southeast Asia and Oceania). As a leading infocomm technology provider and systems integrator offering regional sales and services support and consultancy, NEC APAC develops solutions on carrier network, global identity, RFID, enterprise server, unified communications, multimedia display and contact centre as well as provides outsourcing and managed services. In line with the NEC Group Vision to realise an information society friendly to humans and the earth, NEC also embarks on corporate social responsibility (CSR) initiatives to support “make a difference” to Nature (environment), Education and Community. To learn more about our solutions, visit www.nec.com.sg or email us at [email protected] Singapore NEC Asia Pacific Pte Ltd (APAC Regional Headquarters) www.nec.com.sg India Indonesia Malaysia NEC Australia Pty Ltd. NEC India Pvt. Ltd. PT. NEC Indonesia NEC Corporation of Malaysia Sdn. Bhd au.nec.com in.nec.com id.nec.com my.nec.com New Zealand Phillippines Thailand Vietnam NEC New Zealand Ltd. NEC Phillippines, Inc. NEC Corporation (Thailand) Ltd. NEC Solutions Vietnam Co., Ltd. nz.nec.com ph.nec.com th.nec.com vn.nec.com Australia ©2013 NEC and NEC logo are trademarks of NEC Corporation. NEC Asia Pacific Pte. Ltd. www.nec.com.sg Reliable, safe and longer lasting energy storage solutions Energy Storage System Comparison of Battery Technologies Lithium-ion NAS Lead Acid Nickel Hydrogen 140 - 200 110 35 60 95 90 87 90 4,000 4,500 200 ~ 2,000 1000 Energy Density (Wh/kg) NEC’s Energy Management products and consulting services combined with an extensive portfolio Energy Efficiency (%) of lithium-ion based energy storage systems position NEC as a leading Smart Energy solutions Life Cycle provider in the APAC region — contributing to efficient energy use and lower greenhouse emissions. Advantages • High energy density • High energy efficiency • Rapid charge and discharge • Long life • Resourceful • Long life • Proven technology • Confirmed method of battery recycling • Rapid charge and discharge • Resistance from over charge / discharge Disadvantages • General possibility of organic electrolyte • Exothermic danger • Low energy density • High price of hydrogen storing alloy • Exothermic danger The ongoing rise in the cost of diesel fuel and other energy NEC’s high energy density batteries – traditionally used in mobile sources has resulted in expenditure increases for service phones and notebook PCs – are free from environmentally providers and consumers. The global trend in reducing our restricted substances such as lead, cadmium and mercury and carbon footprint has also necessitated a shift towards the with increased thermal stability and enhanced safety achieved with development and adoption of green initiatives. a spinel structure in the active material of the positive electrode. To meet these needs, NEC has developed a range of versatile NEC battery packs consist of a battery module combining lithium-ion based energy storage systems (ESS), enabling efficient multiple cells, and a battery management unit (BMU). The BMU energy use and emergency power backup facilities while providing includes protection circuitry for monitoring against overcharge, Telecom tower sites today depend upon a range of power sources NEC batteries are ideal for scenarios where there is minimum an overall lower TCO compared to alternative storage solutions. overdischarge, overcurrent and temperature at all times – as well to prevent interruption to services. Grid power currently acts power availability. The high-energy module constructed from as sending data to an external control system – allowing a battery as a primary source, with a combination of diesel generation, lithium-ion cell packs is used to prevent performance loss even in to be safely and easily monitored remotely. photovoltaic energy and storage batteries as a backup source. the event of an individual cell failure. in environmental issues and a response to government initiatives NEC batteries can also act as one of the sources of energy due Modules are enclosed in a chassis which helps to prevent focusing on the necessary growth of renewable sources of energy. to their high cycle performance. Using a lithium-ion battery as an against theft issues. Also, due to its small size, NEC batteries additional source of power increases the overall system efficiency can provide a cost effective solution in places where space is a leading to a considerable reduction in fuel cost. constraint. Reduced maintenance cost, weight, volume, ease of In recent years, the demand for increased scale and capacity of Source: Japanese Agency for Natural Resource and Energy, 2009 & NEC Research NEC ESS in Telecom Application LIBs has been growing. This is due in part to the increasing interest To successfully harness the full potential of renewable energy, Benefits of NEC Lithium-ion ESS such as solar or wind power, the fluctuations in production need transportation, and longer battery lifetime play an important role in to be stabilised. High Energy density building a strong business case for deploying NEC ESS solutions. NEC’s Lithium manganese oxide chemistry offers high energy density and improved thermal stability Environment friendly Smaller size and longer life reduces industrial waste Telecom Tower Sites Durability Photovoltaic Wind Longer lifecycle that can reliably run over 4000 charge/ discharge cycles* Diesel Generator Controller & Rectifier Safety Advanced battery management systems help to safeguard against failure modes Cloud Battery Management Unit Fast Charge Charge up to 80% of battery within 1 hour Utility Grid Network Operating Centre (NOC) DC Air Con to reduce power consumption NEC Lithium-ion Battery