HIGH-POWER FLYWHEEL ENERGY STORAGE CLEANTECH INNOVATE 2014 Efficient Performance for Off-Grid Renewables W: williamsf1.com/advancedengineering/stationary-flywheel-systems/ E:

F1 BRED ENERGY STORAGE FOR OFF-GRID RENEWABLE POWER NETWORKS FOR OFF-GRID RENEWABLE POWER NETWORKS TOP BEARING STEEL CONTAINER STATOR BOTTOM BEARING ROTOR F1 ORIGIN | ELECTRO-MECHANICAL “BATTERY” INHERENTLY SAFE | FULLY SCALABLE + = CO 2 £££ STABILITY + RELIABILITY POWER DENSITY PERFORMANCE SERVICE LIFE UNRIVALLED

BARRIERMITIGATION Other energy storageComplimentary to batteries; best-in-class high-cycle, high power performance MaintenanceVirtually maintenance free Safety concerns of conventional flywheelsMLC makes Williams’ MLC200 flywheel inherently safe Integration EngineeringAn electro-mechanical “battery” makes integration relatively simple Cost of replacementUnrivalled service-life (10,000,000 cycles) makes total cost of ownership low The commercialisation “valley of death”Significant development (Modelling, Rig Facility, HIL); funding secured for single and multi- unit pilots A VIABLE SOLUTION WITH A ROADMAP TO COMMERCIALISATION

MATTHEW BURKE – Chief Engineer, 20 years experience in technology development. Ex Tata, Torotrak & Ford ANDREW GOODWIN – Senior Applications Engineer, 15 years energy storage experience and expert in flywheel technology Ex. Energetix, Pentadyne, UPT OLIVER JONES – Business Development Manager, 10 years commercial and BD experience Ex. Prodrive, GKN KATRIEN HERMANS – Business Development Exec, 10 years experience in marketing and start-up BD DR. HOE SENG OOI – Senior Electrical Machines Engineer, Ex. Schlumberger, Dyson GAVIN FERGUSON – Mechanical Engineer, Ex. McLaren Electronics, Marconi, Siemens WILLIAMS ADVANCED ENGINEERING – access to the Williams wider group resources CREDIBILITY TEAM | CUSTOMERS & PARTNERS

WHAT WE NEED… PARTNERS – GRID TIE INVERTER COMPANIES – COMMUNITIES – ELECTRICITY COMPANIES / NETWORK OPERATORS SPREAD THE WORD! THE BUSINESS CASE… …AND OUR PROPOSITION £5.84m WILLIAMS INVESTMENT 2010 – 2013 FUNDING SECURED FOR 2 PILOT APPLICATIONS IN 2014 (ISLE OF EIGG & FAIR ISLE) FUNDING SECURED FOR MULTI-UNIT FEASIBILITY IN 2014 COLLABORATIVE PILOT IN ALASKA 2014 “3GW OF HYBRID MICRO-GRIDS ONLINE BY 2015 ”