Smart Power System with Internal Combustion Engine (ICE) and Energy Storage System (ESS) as Solar Enabler

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1 Smart Power System with Internal Combustion Engine (ICE) and Energy Storage System (ESS) as Solar Enabler ENABLING SMART POWER SYSTEMS 1 Wärtsilä INTERNAL Embracing Next Generation Technologies

2 SOLAR POWER PLANTS + ENERGY STORAGE + GAS ENGINES 2 Wärtsilä INTERNAL [Presentation name / Author]

3 THIS IS WÄRTSILÄ A global leader in advanced technologies and complete lifecycle solutions for the marine and energy markets 3 Wärtsilä INTERNAL 21 December 2017 Corporate presentation 2017

4 ENERGY SOLUTIONS Installed power plant capacity 65 GW in 177 countries around the world Utilities IPP s (Independent Power Producers) Industrials Municipalities, co-ops, Oil & Gas etc Americas, output: 13.5 GW 5285 Europe, output: GW Africa, output: 7.2 GW Asia & Middle East, output: 27.4 GW Wärtsilä INTERNAL Energy Solutions

5 ENERGY TRILEMMA : OPTIMISING THE SMART POWER SYSTEM, Capex, opex Fuel cost management Operating efficiency Demand response Cheap, clean energy Affordable Wanted : Flexible solutions to balance and optimize the three sides Smart Power System Reliable Adequacy of capacity Operating reserves T&D- grid management RE-balancing. Sustainable Addition of RE Full absorption of RE Increase efficiency of coal plants - reduce CO2 emission/kwh. 5 Wärtsilä INTERNAL Embracing Next Generation Technologies

6 BALANCING SOLUTIONS, TO OPTIMIZE THE THREE SIDES OF TRIANGLE High RE impacts baseload coal generation Low PLF of coal plants High cycling costs ( maintenance) Ramp-up requirement can be met only by keeping coal plants on spinning mode, wasting fuel. Fixed cost/kwh of coal plants will go up, due to poor utilization. Wartsila state of art Internal Combustion Engine based power plants can provide Fast response : Instant start/stop, rapid rampup/down - any number of times/day. Site : Can be located close to load centres Modular : Can be built or scaled up to suit demand Resources : No strain on land or water requirement. 6 Wärtsilä INTERNAL Embracing Next Generation Technologies

7 GREENSMITH - PART OF THE WÄRTSILÄ FAMILY FROM JULY 2017 Recognized leader in energy storage technology and systems integration, responsible for deploying about a third of total US energy storage capacity in 2016 Developed a world-leading energy management software system called GEMS The acquisition will enable Wärtsilä to expand its footprint in the energy storage market and position itself as a leading global energy system integrator. FACTS: 180 megawatts of energy storage, all running on the GEMS platform Powering over 50 sites globally on both sides of the meter Working with 50 customers, including utilities and independent power producers (IPPs) 7 Wärtsilä INTERNAL Energy Solutions

8 WHAT ARE THE CUSTOMER VALUE APPLICATIONS OF STORAGE SOLUTION APPLICATION CUSTOMER VALUE 1 STORAGE + ENGINES (new and installed fleet) 1. Spinning reserve replacement 2. Back-up capacity 3. Power quality support Fuel saving O&M optimization Regulation compliance 2 STORAGE + SOLAR 1. Solar smoothing & ramp rate control 2. Dispatchable solar plant 3. Reduce curtailment 4. TSO/DSO requirements Opportunity for base load generation with RES Energy shifting to high demand hours 3 STORAGE + ENGINES + SOLAR 1. Fully integrated micro-grid solution Optimized generation costs CO2 reduction Grid stability 4 STAND-ALONE ENERGY STORAGE 1. Frequency support & reserves 2. Peak demand management 3. Demand charge reduction (C&I) Electricity market(s) opportunities Back-up capacity 5 STAND-ALONE STORAGE 1. Spinning reserve replacement for existing (thermal) power plants Fuel saving O&M optimization Regulation compliance Wärtsilä INTERNAL C&I = Commercial and Industrial

9 HOW BATTERY STORAGE AND IC ENGINE PLANTS WILL HAVE A POSITIVE IMPACT ON TRIANGLE Helps absorb cheap RE fully. Improves load factor of coal plants- and avoids increase of heat rate. Reduces aggregate cost/kwh at system level Affordable Smart Power System Reliable Sustainable Instantly starts/stop to balance load and RE variation Acts as non-spinning operating reserve Enables full absorption of RE, countering weakness of variability. Removes burden of balancing and reserve from coal plants. Better PLF = lower CO2/kWh. 9 Wärtsilä INTERNAL Embracing Next Generation Technologies

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