THE VALUE OF STORAGE FOR THE ENERGY TRANSITION, EURELECTRIC CONFERENCE, DECEMBER 2017 storage for future power systems Adrian Timbus, Head of Technology and Solutions for Smart Grids and Renewables, ABB Why are we discussing energy storage today Renewables induce a paradigm shift in power systems, is energy storage the holy grail? No need for an enabler* Penetration rate saturates, supply is wasted, demand is not fully met Economic drivers for enablers may raise before V-RES will start to exceed demand, e.g. due to limitation of conventional generation flexibility Wind and solar curtailment at 100% V-RES potential What is the optimal set of enabling technologies to accommodate high shares of variable renewables? Slide 2 Source: ABB analysis. * Enabler interconnector, energy storage, flexible demand, etc. The analysis focuses on generation and demand match. Static and dynamic system limits (grid congestions, voltage and frequency stability) will push the grey segment further down wrt vertical axis. Some small curtailments may actually start at 25-30% V-RES potential. We use different mix of wind and solar production for all regions chosen according to a region s potential. 1
storage system and its relevance to the electricity system storage can be used by all players for various purposes Generation Grid Transport Higher reliability rail and e-bus network Postponement of grid upgrades Dispatchable renewables = more $ per kwh Integration of distributed renewables & EV Industry and large commercial Reduced fees from harmonic pollution & demand peaks Microgrids Residential and small commercial Stabilization New revenue from ancillary grid services Optimize self-consumption Slide 3 How energy storage can support system operations Relevance of storage technologies and reaction time to power system operations 1000s Renewable integration (generation utilization) 1000s Sodium Sulfur Pumped Hydro 300 100 30 End user peak shaving (grid upgrade deferral) (grid upgrade 300 deferral) time [min] 100 30 Flow Lead acid Power-to-gas Frequency regulation 10 100 kw 1 MW 10 MW 100 MW 1000 MW 10 Lithium ion Super-capacitor / flywheel 1 sec 10 sec 1 min 10 min 1 hour Power requirement [MW] Reaction time capacity as well as reaction time is defining the optimal storage technology for given application. Slide 4 2
Technologies along the value chain Innovation takes off across the board, making energy storage a very appealing solution for the sector storage Power conversion Digitalization Applications Pumped hydro Power converters ABB Ability Grids Cloud Battery Engineered packages EV Interconnectors Control and automation C&I 1 Hydrogen Turnkey solutions Homes Slide 5 1 Commercial and Industrial Power conversion technologies maximize efficiency and flexibility Power converters, engineered packages and turnkey solutions Power Range Voltage Levels Why ABB? Converters 25 kva 100*+ MVA LV 690 V MV 3.3 6.6kV World leader in LV power converters Unrivalled expertize in MV converter technology Engineered and preengineered storage solutions Productized pre-engineered systems in container 60 5600kVA, unlimited scalable Customized solutions LV and MV LV, MV and HV Optimized, standardized and tested PCS ensures high performance over a long service life Modular approach for ease of deployment and commissioning Knowhow and expertise to deliver the ideal solutions for every application Turnkey Solutions 1 100*+ MVA MV and HV Capability to deliver comprehensive fully integrated systems that integrate seamlessly into power network Residential PV + BESS LV Integrated PV and BESS system for optimum performance and efficiency Slide 6 * Technically there is no size limiting factor 3
Digital solutions increase the value of energy storage Control algorithms are key to ensure energy storage is the suited for each application System adequacy Load Supply Power Absorb Power Ancillary services f [hz] 50.02 50.00 49.98 Absorb power t [sec] Integration of renewable resources Renewable Generated Power Absorb Power Supply Power Power t [hrs] t [sec] t [sec>min] resiliency Scheduled power consumption Load Supply Power Power quality Short disruption Voltage Backup supply Power Electricity supply failure Actual power consumption Absorb power t [sec] t [sec>min] t [ms] Slide 7 Making sure we leverage the flexibility Managing the future power systems require extensions of energy management system Grid and grid edge assets Next gen EMS 1 New solutions and business models Solar power Industrial site markets Wind power Power grid Monitors Aggregates Analyses Understands Controls Communication Cloud Enables new solutions Enables new services Enables new business models Grid operations Hydropower Automation Cybersecurity Retailing Thermal power E-mobility Services Prosumers Industry Slide 8 1 Management System 4
Key points to take away storage is not the sole solution, its integration and management in power systems is also key Challenges 1 Renewables created a paradigm shift in power systems To integrate more green generation, we need to holistically manage flexibility storage technologies can provide short and long term flexibility Technology 2 ABB 3 BESS technology has evolved drastically over the time, becoming more versatile and reducing considerably the system costs Long term storage still has to be addressed, need for further R&D spending The power conversion is well established from other industries, modularization has to be addressed ABB has vast expertise and experience with energy storage solutions ABB offering scales from low power to high power high capacity applications ABB control system enables ESS to provide all relevant functions for energy and grid management Slide 9 5