SegenSolar (Pty) battery storage training

OUR ENERGY FOR YOUR SUCCESS SegenSolar (Pty) battery storage training Accumulatorenwerke HOPPECKE Carl Zoellner & Sohn GmbH Bontkirchener Straße 1 D-59929 Brilon-Hoppecke www.hoppecke.com

COMPANY FACTS Company facts Founded 1927 by Carl Zoellner Largest battery manufacturer in European ownership for industrial applications in Europe Dr. Marc Zoellner Managing Director since 2003 ~ 1.900 employees worldwide ~ 350 Mio turnover in 2014 Claus Zoellner Since 2003 Chairman of the Advisory Board, Managing Director 1967 until 2003 Proven and innovative storage technologies in production: lead acid (vented, VRLA, AGM), nickel cadmium, nickel metal hydride and lithium ion Ernst Zoellner Managing Direcotor until 1967 Carl Zoellner Founder of the company, Managing irector until 1943

GROUP STRUCTURE Accumulatorenwerke HOPPECKE HOPPECKE Batterien HOPPECKE China HOPPECKE Batterie Systeme HOPPECKE Technologies & ABT HOPPECKE Service HOPPECKE Metallhütte (Smelter) HOPPECKE International Brilon, D Lead-acid- battery systems Wuhan, CN Lead-acid- battery systems Brilon, D Alkaliine battery systems Zwickau, D Chargers, New Battery Technologies (Li-Ion), Systemtechnology Zwickau, D Service Brilon, D Recycling Subsidiaries, worldwide R&D Production Sales Recycling of lead-acid industrial battery systems Production Sales Shanghai, CN Lead-acidbattery systems R&D Production Sales Recycling of alkaline industrial battery systems R&D Production Service for batteries and chargers Safety checks Systems advice On-site training Recycling of leadacid batteries in our owm smelter Production Sales Service Production Sales

A STRONG BRAND Quality is our Trademark Innovation Development of optimal solutions for energy supply in one of the largest R&D departments in this industry in Europe. Quality High quality right from the start of the development phase, high quality management in accordance with recognised test procedures. Quality pays its way through: - Longer product life - Improved usage of resouces - The highest degree of energy safety - Maximum energy availability Service Europe-wide service network. Certified service staff. Consulting, service and training offers for all technologies and applications of industrial batteries. HOPPECKE - POWER FROM INNOVATION

AREAS OF APPLICATION MOTIVE POWER SYSTEMS Development, production und worldwide Sales of motive power energy systems RESERVE POWER SYSTEMS Development, production und worldwide Sales of stationary energy systems SPECIAL POWER SYSTEMS Development, production and worldwide Sales of specialized applications in FNC -, Li-Ion und NiMH-technology SERVICE Worldwide energy services

HOPPECKE WORLDWIDE HOPPECKE Sites and Representations HOPPECKE Site HOPPECKE Representation

Industrial battery technologies Lead-Acid NiCd NiMH Li-Ion Energy density [Wh/kg] 30 40 40-60 60-80 100 200 Power density [W/kg] 200 700 200 200-1.000 1.500 2.000 Voltage 2,12 V/cell 6 Zellen => 12,7 V 1,2 V/cell 10 Zellen => 12 V 1,2 V/cell 10 Zellen => 12V 3,6 V/cell 4 Zellen => 14,4 V Lifetime (Jahre) 5 12 10 10 5 12 up to 20 Cycle performance 750 1.600 (80%DOD) 2.000 3.000 (80% DOD) 2.000 3.000 (80% DOD) 2.000 10.000 (80% DOD) Recharge Several hours Minutes to hours Minutes to hours 1 hour to 100% SOC Efficiency [%] 80 95 90 90 90 95 Operating temp. [ C] -20 / +50-40 / +60-20 / +50 0 / +50 Cost [ /kwh] today 200 350 600 600-1200 <500 1.800 Environmental friendly recycable recycable not defined not defined Beyond 2020 two technologies will dominate the market: Lead-Acid (cost) and Lithium-Ion (power)

sun power system solutions sun powerpack premium sun powerpack classic sun systemizer Individual systems July Copyright 2013 HOPPECKE Batterien GmbH & Co. KG PM RP 08.09.2015 Company Presentation Nr. 8

HOPPECKE Li-Ion: Applications Traction Stationary Basic modul Bus, Railway

sun powerpack premium sun powerpack premium Li-Ion based energy storage system (LiFePO prismatic cells) Applications: Storage of PV energy (residential and small commercial) Industrial applications (standby and cycle use) Capacity: 5.0 or 7.5kWh per unit / up to 7000 cycles at 80% dod Capacity extension: 10.0 / 15.0 / 20.0 / 30.0 kwh by parallel switching of up to four single units Nominal Voltage: 51.2V Dimensions: 600 x 500x 350mm (H x W x D) Weight: 85kg (5kWh) / 100kg (7.5kWh) 11

sun powerpack premium sun powerpack premium CAN-interface for service BMS 1) Socket for DC connection with pilot contact Bracket for wall mounting Cable tray 1) Battery Management System 12

SUN POWERPACK PREMIUM Customer benefits Very easy installation: Wall and bottom installation Special mounting frame included Up to 4 systems and 30kWh Ready-to-store Heaviest part 40kg One system in 30 minutes No ventilation needed Complete installation video on youtube https://youtu.be/9cxvdrhbky4 July --- 2013 Company --- Presentation Nr. 13

SUN POWERPACK PREMIUM Customer benefits Extremely high efficiency Round trip efficiency about 94% Patent pending for BMS Very safe Safety design developed together with the VDE Three-stage safety concept Developed and produced in Germany Warning and shut down at the end of life July --- 2013 Company --- Presentation Nr. 14

SUN POWERPACK PREMIUM Customer benefits Highly flexible Expandable up to 30kWh per inverter Can handle high starting currents Tested and released for harsh off-grid applications Integrated display for key information July --- 2013 Company --- Presentation Nr. 15

sun powerpack premium

sun power classic

sun power classic sun powerpack classic Lead-acid based energy storage system Applications: On- and Off-grid Storage of PV energy (residential and small commercial) Industrial applications (standby and cycle use) Capacity: 5.5 to 22kWh gross energy content VRLA technology 2.500 cycles at 50% dod Capacity variations: 5,5/ 6,4/ 8,0/ 11,0/ 16,0*/ 22,0*kWh *by parallel switching of two single units Nominal Voltage: 24/48V Max. Dimensions: 899 x 829x 385mm (H x W x D) Weight: 195kg (5,5kWh) - 740kg (22,0kWh) System components alomst fully recycable > 95%

SUN POWERPACK CLASSIC Customer benefits Pays off Very good price performance ratio Reduced to the essentials Extremely low self discharge Highly proven system Eco-friendly Almost completely recyclable Can be reused through the HOPPECKE metal smelter No electronics installed July --- 2013 Company --- Presentation Nr. 20

SUN POWERPACK CLASSIC Customer benefits Easy installation and maintenance Plug and Store Complete installation video on youtube https://www.youtube.com/watch?v=mulfrfiyfk4 Well-conceived design Advanced lead-acid batteries HOPPECKE ESS Technology inside Almost no acid stratification possible Less weight and volume than ordinary lead-acid systems July --- 2013 Company --- Presentation Nr. 21

Mini Grid Systems Location: Tahiti 2010 Application: Resort Island Products: 288x 12OPzS solar.power 2170 Capacity of the battery bank: 927kWh

Mini Grid Systems Location: Namibia 2011 Application: Village plus Telecom Products: 288x 10OPzS solar.power 1520 Capacity: 656kWh

Telecommunication Location: Burkina Faso 2011 Application: Telekommunication Products: 24x 16OPzS solar.power 2900 Capacity: 103kWh

Telecommunication Location: Mali 2012 Application: Telekommunication Products: 120x 12OPzS solar.power 2170 Capacity: 386kWh

Farming Location: Namibia 2012 Application: Water Refill System Products: 24x 1OPzV solar.power 1700 Capacity: 81,6kWh

Hospitals Location: Somalia 2015 Application: hospital Products: 24x 12OPzV solar.power 1700 Capacity: 81,6kWh

Small trade Location: Mali 2014 Application: coffee shop Products: 8x 6V 6OPzV bloc solar.power 370 Capacity: 14,8kWh

THANK YOU Thank you for your attention! www.hoppecke.com