ENERGY STORAGE FOR THE INTEGRATION OF RENEWABLE ENERGY AND THE BALANCE OF THE POWER SYSTEM THE CASE OF MARTINIQUE IRENA, MARTINIQUE JUNE 23, 2015

| 2 INTERMITTENT RENEWABLE ENERGIES  Several constraints exist with intemittent renewable energies:  Difficulty to predict long term production opportunities  Inequal daily production  Lack of control over production and legal obligation to purchase  Impact on the power system:  Fragile supply and demand balance  Risks due to high dependency on climate conditions  High potential impact on the network’s electricity frequency EFFECTS ARE INCREASED ON ISOLATED NON INTERCONNECTED POWER SYSTEMS

| 3 Type : Lithium-Ion Battery Power : 5 MW Maximum autonomy: 30 minutes Reaction time : 500 millisecond THE CENTRAL BATTERY SYSTEM

| 4 5MW CENTRAL BATTERY INNOVATION  1st central battery system in Martinique  Self-operated and stationary storage system INCREASED NETWORK STABILITY  Power is available on the network anytime  Allows an increase in the potential of intermittent energy installed on the network.  Facilitator of energy transition BENEFITS  Profitable technology  High savings in production costs  Decreasing battery prices  Reduced CO 2 emissions

| 5 PREPARING THE ENERGY TRANSITION EDF is committed, with major organizations of the territory, to reduce the energy consumption by 10% by The innovative projects implemented will reduce the carbon footprint by avoiding the emission of 20,000 tonnes of CO2 per year. Some of the projects:  Energy efficiency  Incubator for the energy transition in Bellefontaine

| 6 THANK YOU