MICROGRID AND ISLAND ENERGY STORAGE SOLUTIONS

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1 MICROGRID AND ISLAND ENERGY STORAGE SOLUTIONS

2 WHY BATTERY STORAGE? INTEGRATE UP TO 100% RENEWABLES Younicos microgrid solutions ensure the reliable grid integration of variable, intermittent renewable energy sources of up to 100 percent. Simulated at our MW-scale technology centres in Berlin, Germany and Austin, US. Truly game-changing! REDUCE YOUR GENERATION COSTS By operating your generator solely as a backup power source, you will save a lot on fuel. At the same time, you increase your generator s lifespan and decrease O&M costs by running it mainly at optimal loading and reduced cycling. POWER QUALITY AND RELIABILITY A weak grid increases the risk of load losses and may require additional investment in electrical infrastructure. Our microgrid solutions not only manage multiple resources, but also strengthen your grid by providing grid services within milliseconds and with the highest precision and utmost reliability. FROM ISLAND TO MAINLAND MICROGRIDS We have taken our island grid expertise and applied it to successful grid-forming solutions on mainland and urban networks. Our decade-long experience in R&D and project realisation means we have all the tools needed to construct an efficient and reliable local microgrid.

3 ADIÓS DIESEL, AHOY ENERGY STORAGE! BATTERY STORAGE FOR MICROGRIDS Many remote areas are well-suited for renewable power generation. However, the inherent variability of wind and sun may also lead to increased grid instability and operational uncertainty on isolated networks. Energy storage is key to eliminating dependence on fossil-fuel systems for power supply and power quality. It strengthens your grid by providing critical system services to buffer the impact of fluctuating power demand and supply. This reduces the runtime for ageing and expensive backup diesel generation. RENEWABLES + STANDARD DIESEL GENSET POWER demand supply MINIMUM DIESEL SHARE TO ENSURE GRID STABILITY LOW MEDIUM HIGH INSTANTANEOUS RENEWABLE POTENTIAL LOAD DIESEL RENEWABLES YOUNICOS MICROGRID SOLUTION WITH BATTERY STORAGE POWER demand supply LOW MEDIUM HIGH CASE STUDY We have analysed an island with approx. 5,500 inhabitants that was originally powered by diesel generators and simulated the economic and ecological effects from installing a battery energy storage system (BESS). Fuel consumed without BESS: 150,000 litres/week Fuel consumed with BESS: 105,000 litres/week Estimated annual fuel savings: 1,872,000 Estimated O&M savings: 150,000 Total annual savings: 2,022,000 The installation of the BESS leads to savings that significantly outstrip the operating costs of the BESS, yielding an unlevered project IRR of at least 20.4 percent and resulting in a payback time of 5 years or less. The system would primarily provide N-1 Replacement and Volatility Smoothing in parallel while also allowing for an increased use of renewable energy which would otherwise be curtailed. THE 360-DEGREE YOUNICOS OFFERING Technology Centres We test your island system design Our megawatt-scale technology centres in Berlin, Germany and Austin, USA feature state-of-the-art hardware so we can validate your microgrid design under real conditions. Renewable generation simulators recreate actual energy flows based on live weather data, and load simulators duplicate your load profile. This provides you with the highest level of planning reliability in terms of functionality, costs and timing. Operation and maintenance services O&M is the ongoing process of sustaining maximum system performance and availability by ensuring equipment reliability and efficient operation. We provide you with tailored service packages based on your specific needs and level of expertise from 24/7 monitoring, operations, customer service and technical support to on-site maintenance.

4 SMARTER SOLUTIONS FOR MICROGRIDS Based on our experience of storage installations worldwide, we have developed unique solutions, specifically tailored to the needs of microgrid applications. Our aim: creating grids with the highest standards of reliability and efficiency. We deliver complete solutions, from system design through to equipment specification and superior performance reliability. Explore our offering for microgrids and islands! Station BUILDING SOLUTIONS Drawn from our experience building some of the industry s first utility-scale energy storage systems, the Y.Station is our solution for larger storage projects. It is pre-designed and pre-engineered to deliver optimised system layout and minimise system losses, enabling efficient project planning and faster project deployment. This modular design gives Y.Station greater flexibility in terms of power and energy capacity, with the ability to scale to several MW of power and several hours of duration. SOFTWARE PLATFORM Y.Q is a powerful integrated software platform and the brains behind every Younicos solution. It ensures that you always get the most out of your system while guaranteeing full availability and maximising asset life. A multi-mode priority stacking feature enables the system to handle a variety of services in parallel. Y.Q supports multiple technologies and applications and can be quickly and easily adapted as new applications emerge. Energy Manager (EMS) As part of the Y.Q platform, our Energy Manager software has been specifically developed for the operation of microgrids in which all major system services are provided by a combination of renewable and conventional generation and a battery system. It also seamlessly interfaces with existing SCADA systems. The EMS allows users to remotely change settings and operational modes through a web-based user interface. CONTAINER SOLUTIONS Y.Cube is a fully integrated plug-and-play energy storage solution. Within a single enclosure, it houses the converters, the selected DC battery block, HVAC and auxiliary components. Y.Cube is easily configurable for different system sizes and multiple battery technologies. The compact enclosure can easily be installed with a forklift instead of an on-site crane and shows less parasitic losses and slower battery degradation thanks to its superior thermal management. HOW CAN WE HELP YOU? CUSTOMER CHALLENGE High and volatile energy costs APPLICATIONS High-penetration renewable integration Grid-forming operation CUSTOMER VALUE Lower energy bill Protection from future fossil-fuel price increases Dependency on diesel Backup Power Black-start capability Voltage control and power factor correction Energy autonomy Renewable energy supply Intermittent renewable power sources Ramp rate control Renewable capacity firming Curtailment capture Increased reliability, operational plannability and dispatchability of renewable energy generation Higher returns for renewable installations Unstable power supply Frequency response Voltage control and power factor correction Short circuit power Improved grid stability and power quality Protection of local grid and critical infrastructure from power outages Environmental pollution through emissions and noise Renewable integration Reduced environmental pollution Reaching carbon targets

5 SELECTED PROJECT GRACIOSA ISLAND AZORES, PORTUGAL 4MW POWER 3.2MWh CAPACITY AN ISLAND POWERED BY WIND AND SUN Graciosa the graceful one is the second-smallest Azorean island and has approximately 4,500 inhabitants. Inconspicuously located in the middle of the Atlantic Ocean, it may not seem like the starting point of a global revolution, but Graciosa is about to inaugurate a truly disruptive shift in how power is produced in remote locations around the world. The Challenge As on many islands of a similar size, diesel and other thermal engines keep their grids stable by quickly adjusting power production based on demand. To do this, they must remain online at all times. The energy produced in this way limits the share of wind and solar energy generation to 15 percent annually. Our solution We break the dependence on diesel fuel. On this Portuguese island, we are in collaboration with the Azorean power utility EDA establishing the world s first megawatt-scale grid-forming renewable energy system. The island mode capability of the fully automated battery system will enable up to 100 percent spontaneous renewable power penetration and allow the Portugese island to replace around two-thirds of its fossil-fuel generation with low-cost renewable energy. Smart system design Intelligent power controls and a purpose-built energy management system by Younicos are combined with a 4 MW/3.2 MWh battery storage system powered by lithium-ion cells, a 4.5 MW wind park and a 1 MW photovoltaic power plant. The system allows the island to be powered by wind and solar energy with the existing diesel needed only for backup power during prolonged periods of unfavourable weather. Thanks to this grid-forming battery park, the island will soon be home to the world s first renewable energy-based microgrid, which replaces expensive diesel-generated electricity with much cheaper clean energy. The resulting savings from the energy conversion will be shared between the investors and Portuguese end consumers. FOR MORE INFORMATION, PLEASE CONTACT US: mail@younicos.com Younicos GmbH Am Studio Berlin Germany December 2017 All Rights Reserved.