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HomeMy WebLinkAboutGo Electric Preliiminary Technical Proposal Nome AlaskaPictures, descriptions, and characteristics may evolve, without notice or information Go Electric Inc. LYNC Secure® Battery-Enabled Microgrid Preliminary Design For Battery Energy Storage System at the Nome Joint Utility Systems Confidential & Proprietary Information DISCLOSURE STATEMENT This data shall not be disclosed outside of your company and shall not be duplicated, used, or disclosed, in whole or in part, for any purpose other than to evaluate the proposal; provided that if a contract is awarded to this offer, or as a result of or in connection with the submission of this data to the extent provided in the resultant contract. This restriction does not limit your company’s right to use the information contained in the data if it is obtained from another source without restriction. The data subject to this restriction is contained in this document in its entirety. TECHNICAL PROPOSAL Nome Joint Utility Systems 9/14/21 Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 2 / 15 Contents 1. EXECUTIVE SUMMARY .......................................................................................................................................... 5 1.1 PROJECT OVERVIEW .............................................................................................................................................. 5 1.2 GO ELECTRIC’S (GOE) ANSWER ............................................................................................................................. 5 2. TECHNICAL OVERVIEW ......................................................................................................................................... 7 2.1 PRELIMINARY SLD ................................................................................................................................................. 7 2.2 COMMUNICATION CONCEPT .................................................................................................................................... 8 2.3 SYSTEM OPERATING MODES .................................................................................................................................. 8 BESS Use Case ........................................................................................................................................... 8 Sequence of Operation Description .............................................................................................................. 8 2.4 GO ELECTRIC’S LYNC 32’ CONTAINERIZED SKID CONCEPT ..................................................................................... 9 2.5 GO ELECTRIC LYNC© SECURE PCS ................................................................................................................... 11 2.6 AUTOLYNC© MICROGRID CONTROLLER DESCRIPTION ......................................................................................... 11 2.7 TROES ENERGY STORAGE (LFP).......................................................................................................................... 12 3. EXCEPTIONS AND ASSUMPTIONS .................................................................................................................... 13 4. PREVIOUS PROJECTS ......................................................................................................................................... 14 4.1 CORDOVA ELECTRIC CO-OP, CORDOVA ALASKA ................................................................................................... 14 4.2 RAGLAN II PROJECT, GLENCORE MINING MICROGRID PHASE 2- TUGLIQ ENERGY ................................................. 14 4.3 BELCO- 10 MW 5.5MWH INSTALLED 2019: ........................................................................................................ 14 4.4 29 PALMS RANGE 500 ......................................................................................................................................... 14 4.5 CAMP SMITH SPIDERS PHASE III MICROGRID; OAHU, HI ..................................................................................... 14 Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 3 / 15 LIST OF APPENDICES (provided in separate files) REF Filename Appendix 1 APPLICABLE DOCUMENTS REF Document [AD1] VERSIONS REV DATE Description Initials - 9/14/21 Initial SL Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 4 / 15 ACRONYMS & ABBREVIATIONS AC Alternating Current AGC Automatic Generation Control BESS Battery Energy Storage System BMM Battery Management Module BOL Beginning of Life COD Commercial Operation Date DC Direct Current DER Distributed Energy Resource DOD Depth of discharge EDO Emergency Dispatch Order EOL End of Life EMS Energy Management System (for economic dispatch functionality) ESS Energy Storage System composed of BESS & PCS ESSU Energy Storage System Unit FSS Fire Suppression System HVAC Heating, Ventilation and Air Conditioning LFP Lithium Iron Phosphate Li-ion Lithium-ion MBMM Master Battery Management Module MOB Motor Operated Breaker MVPS Medium Voltage Power Station NMC Lithium Nickel Manganese Cobalt Oxide PCS Power Conversion System PPC Power Plant Controller (Power Management for battery lineup integration) POC Point of Connection POI Point of Interconnection PR Protective Relay PV Photovoltaic SG Switchgear SLD Single Line Diagram SMU Safety & Monitoring Unit SOC State of charge SOH State of health Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 5 / 15 1. Executive Summary 1.1 Project Overview GoE is pleased to describe in this document our understanding and best answer to the request for an Energy Storage System (ESS) for the Nome, Alaska project. The purpose of the ESS is to optimize the operation of the base dispatch generation engine and provide power stability with wind and load fluctuations in the microgrid. • Spinning reserve and associated step-load capabilities • Fast and appropriate frequency (FFR) and voltage support whenever active • Inherently stiff (low impedance) voltage source that will provide good transient support during events. • Adjustable droop response for both frequency and voltage deviations Two systems are proposed, i.e., a 2MW and a 4MW option. Hereafter the key specification parameters considered for this preliminary design concept: Option Value Min / Max ambient temperature considered -40˚C to +40˚C Peak power required at PoC 2MW and 4MW Energy required at POC 30 min Application Spinning reserve, FFR, diesel bridging Voltage & Frequency at PoC 480Vac / 3ph / 60Hz Required lifetime TBD yrs 1.2 Go Electric’s (GoE) Answer GoE has conceived a preliminary offer in this proposal. The preliminary design is for budgetary purposes and is provided to define a scope for budget forecasting. GoE expects the proposed design will evolve as the technical requirements are defined. The scope of supply is summarized in the following table. Project management ESS solution Engineering and Procurement Included 2MW Option Equipment Battery container Troes, 1136kWh, 20’ Container, HVAC, BMS, FSS, UL1642, UL1973 2 PCS Skidded Containerized Power System (factory assembled and tested): 2x GoE LYNC Secure 500kVA (IBOX) DC and AC input and output connection points 32’ Skidded Container, (-40 deg C) 2 4MW Option Equipment Battery container Troes, 1136kWh, 20’ Container, HVAC, BMS, FSS, UL1642, UL1973 4 Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 6 / 15 PCS Skidded Containerized Power System (factory assembled and tested): 2x GoE LYNC Secure 500kVA (IBOX) DC and AC input and output connection points 32’ Skidded Container, (-40 deg C) 4 Delivery, Commissioning & Warranty Delivery Not Included Tests & Commissioning Support (on site) Included Warranty (2 yrs) Included O&M (2 yrs) Included Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 7 / 15 2.Technical Overview 2.1 Preliminary SLD A concept microgrid SLD is shown in the following diagram. The BESS will be connected to the 480V, 3ph bus. In both options, the 1.0 MVA containerized skid system is proposed as the building block. The skid system includes 2x LYNC Secure 500kVA power conversion systems, DC combiner box and an AC disconnect along with the embedded AutoLYNC MG controller. The system will be connected to the battery storage (provided by GoE) on one side and the 480V, 3ph application on the other. A 1-hr battery is proposed since it is a more economical choice when compared to a 30 min battery. Additionally, with a 1-hr battery design performing the same duty as a 30 min battery design, the degradation rate will be lessened. The following SLD illustrates the 2MW ESS lineup using the 1MW skidded building block. For the 4MW option, the concept uses 4x 1MW building blocks and is equivalent to 2x 2MW ESS lineups. Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 8 / 15 2.2 Communication Concept An Auto LYNC© microgrid controller is included and embedded in the LYNC© Secure PCS. A conceptual SLD to accomplish the necessary microgrid control functions in accordance with the required use cases is shown in the following diagram. GoE proposes to use Woodward EasYgen genset controllers (provided by GoE) to interface with the existing gensets. The communication between the devices will use Modbus TCP (green dotted) and CANbus (yellow dotted). GoE will develop and supply the HMI interface for data acquisition. The following SLD illustrates the comms concept. 2.3 System Operating Modes The embedded AutoLYNC© microgrid controller provides the necessary controls in accordance with the following BESS use cases. BESS Use Case The primary use case for the BESS is to provide spinning reserve and fast frequency response. The BESS would be providing operating reserve in this use case. The secondary use case for the BESS will be to provide energy arbitrage for times when the diesel generator operation is marginal. Sequence of Operation Description At all times the Go Electric microgrid controller (AutoLYNC©) monitors and logs the data within the system. The AutoLYNC© reports all abnormal conditions including warnings and alarms to the HMI and logs the condition data. In normal operation one or more of the generators would be running and the LYNC© battery energy storage system would be operating in parallel with the generator(s). The generator(s) would be controlling the voltage and frequency of the paralleling bus and the LYNC© Secure PCS would be in current mode accepting both real and reactive power commands from the AutoLYNC©. The PV would be connected and delivering any energy available from the Wind. The AutoLYNC© continuously monitors the power provided to the loads and sends reactive power commands to the LYNC© Secure PCS to maintain a power factor between 0.90 lagging and 0.99 at the load connection on the paralleling bus. Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 9 / 15 Ramp Rate Control The AutoLYNC© continuously monitors the power provided by the Wind output. If the Wind output changes by more than TBD kW/s, the AutoLYNC© will command the LYNC© to increase or its output to limit the rate of change of the combined Wind and ESS output. The ramp rate of the ESS is limited by UL1741 SA11 to 100% capacity per second. Fast Frequency Response The LYNC© Secure PCS continuously monitors the voltage and frequency of the paralleling bus. If the voltage or frequency of the paralleling bus has an excursion outside of predetermined limits, the LYNC© Secure PCS will autonomously inject or absorb power to limit the excursion. This function is primarily designed to catch an unintended loss of a generator. Wind Variability Management and Optimization Based Dispatch The AutoLYNC© continuously monitors the power provided both the Wind, LYNC Secure PCS and the generator(s). The intention of the system is to minimize fuel utilization and dispatch of the generators. In normal operation with one generator online, the AutoLYNC© will also command the LYNC© Secure PCS to maintain a nominal TBD state of charge (initially 80% SOC). This steady state charge/discharge rate will not exceed TBD kW. If the load on the one generator exceeds TBD% kW, the AutoLYNC© will command the LYNC© to discharge to limit the load on the generator and act as a spinning reserve. Adding Generator If (A) the load on the generator(s) exceeds TBD% kW and the SOC is below 20%, or (B) the combined power from both the generator and the LYNC© Secure PCS exceeds TBD% of the kW capacity for more than TBD minutes, the AutoLYNC© will command another generator to start. There are different algorithms that the AutoLYNC© can use to manage the balancing of generator run hours to optimized service intervals. This will require a further discussion. Generators can be manually configured to be offline or manually dispatched through the AutoLYNC© HMI. A generator may also be immediately dispatched when the LYNC© Secure PCS is performing a Fast Frequency Response for more than TBD seconds. If more than one generator is online, the AutoLYNC© will command the LYNC© Secure PCS to charge in attempt maintain the generators near their maximum power output (TBD% of the kW capacity) to minimize fuel utilization. Removing a Generator If (A) the kW capacity of the on-line generating assets minus the load on the system is below TBD kW (the kw capacity of the planned generating loss) and the SOC is above 80% for more than TBD minutes, the AutoLYNC© will command a generator to stop. Additional Considerations The AutoLYNC© may send a command to curtail the Wind or send a command the secondary load controller (dispatchable heating) to prevent underutilization of a generator to prevent wet-stacking and/or to prevent reverse power of a generator. 2.4 Go Electric’s LYNC 32’ Containerized Skid Concept A 32’ skid integrates a 1MW building block of power electronics. Two skids are required and included for the 2MW system. It will be engineered, assembled, tested, and supplied from our factory to simplify site installation. The major components included on each skid are as follows. Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 10 / 15 • 2x LYNC Secure 500kVA – The LYNC Secure will house the HMI, UPS, breakers, protective relays, step up transformer, metering, and auxiliary power. • 1x DC Combiner box – The combiner box includes contactors, fuses, busing, landing points for battery power, landing points for auxiliary power to the battery, PLC interface for BMS communication to allow connection points to the battery (separate from the skid). • 1x AC Disconnect box – The AC disconnect includes a maintenance disconnect and aggregating bus for 2x LYNC Secure 500kVA outputs to allow a single connection to the Switchgear (provided by others). The major components will be placed on the skid platform and the interconnections between the components will be factory installed. The complete system will be factory tested for functionality and holistic MG functions. An example of the design is shown in the following rendering below. The preliminary concept shows a 32’ skidded design. The design is not exact, but it gives you a visual idea of what to expect. Example of 30’ Skidded Micro-Grid Rendering Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 11 / 15 2.5 Go Electric LYNC© Secure PCS The LYNC Secure 500kVA, aka the DuoBox, is the standard PCS building block. Four LYNC Secure 500kW PCS’s or DuoBoxs are parallel connected to provide the 2MVA required power at the point of interconnection to the MV transformer (provided by others). The DuoBox is built using two 250kVA inverter blocks connected in parallel, internally. The LYNC© Secure PCS provides synthetic inertia and it uses a control algorithm like a synchronous generator. Each 250kVA inverter block can provide a full 4 quadrant active and reactive power. See inset diagram. However, the UL certified performance is limited as indicated (blue shaded area). 2.6 AutoLYNC© Microgrid Controller Description The AutoLYNC© micro grid controller is integrated with the LYNC© Secure PCS. GoE utilizes a multi-layer microgrid architecture that delivers best-in-class microgrid performance and customer value streams. Distributed Energy Resource (DER’s) Layer (Physical Layer): PQ Diagram for 250kVA LYNC Secure PCS Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 12 / 15 AutoLYNC© seamlessly integrates any AC or DC DER including switchgear, generators, solar PV, DC batteries and the grid for maximum microgrid flexibility. Microprocessor Layer: A microprocessor is combined with each DER in the physical layer, which allows the AutoLYNC© controller to control in real time with simple commands, maintain microgrid stability and prevent any load or generation runaway. This is a critical capability for overall microgrid control. Real-Time Control Layer: This layer is high-speed fiber that connects LYNC© Secure to each microprocessor, which gives this layer four key features. • Fast (msec) • Deterministic • Masterless • Scalable Multiple communication protocols can be utilized, such as Modbus TCP or 485, CANbus, DNP3, SCADA, etc. Microgrid Orchestration Layer: This is your classic microgrid controller, however, in the Go Electric architecture, the microgrid controller does not route every command and communication between the DER’s. Instead, it is the conductor that tells the other DERs what mode to operate in, from which point each DER can talk to each other directly. This allows for low latency communication throughout the microgrid. This layer seamlessly integrates with any SCADA system and can be programed to specific economic set points to deliver maximum value streams to the customer. The AutoLYNC© controller facilitates the input for an Emergency Dispatch Order (EDO) per IEEE 2030.5. Macrogrid Orchestration Layer: This layer provides a cloud-based portal to aggregate, monitor and command the microgrid, as well as a customer interface with real-time data. Customers can see their facilities load, energy savings, and demand response income. 2.7 Troes Energy Storage (LFP) The Troes Battery Energy Storage System (BESS) is an LFP based chemistry and the rated characteristics are provided in the following table. The BESS is housed in a separate 20’ container that eventually connects to the 32’ Skid. The aging of the battery will be dependent on the duty profile. Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 13 / 15 3. Exceptions and Assumptions • The proposed system is designed to meet the specification given in this technical proposal. A detailed line by line compliance to the requirements from Nome, Alaska is TBD. • Excludes the supply of a MV transformer and Switchgear. • Excludes unforeseen modifications that maybe required for communicating and coordinating with other equipment or DER’s outside of the scope of supply. • Excludes mechanical, civil, and electrical stamp design approval for permitting of equipment • Excludes Power system engineering design studies (coordination protective relay setting, arc-flash studies, etc.) provided by others. • Excludes Installation and construction – such as climate-controlled buildings, conduit, concrete pad, dunnage, fiber, on-site electrical work, grounding grids, etc. provided by others. • Prior to Go Electric Inc. arriving at the end customer site for start-up and commissioning, the installation of equipment must be completed. Additional cost will be applied if the installation is incomplete or does not have correct features and functionalities required and require additional site visit. • Does not include integration with different distributed energy resources that are not listed. • Electrical distribution equipment is not included or upgraded to meet code standards. • Electrical infrastructure shall have common grounding and neutral reference points, if not it needs to be provided by others. • Customer is responsible to provide aux power to the system and keep the battery and microgrid in operating condition. • Excludes transportation costs. • Loading or Off-Loading of equipment at project site provided by others. • Major deviations from the sequence of operations or use cases described in this document will require further evaluation of the MCS control function feasibility and scope of supply. • This quotation is subject to change due to changes in the import taxes applicable to the components of Go Electric’s product. Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 14 / 15 4. Previous Projects Go Electric a Saft Company, has a significant field experience in energy storage applications. For cold weather application, Saft has been deployed over the last decade and a presentation is available in the Appendix. summary of other fielded application is given in the following sections. 4.1 Cordova Electric Co-op, Cordova Alaska Go Electric/Saft is provided a 1MW PCS and 1MWh kWh a Saft lithium-ion (Li-ion) energy storage system (ESS) into its hydropower microgrid. The ESS integrated into the hydroelectric generation for frequency response maximizing renewables within the microgrid structure for local grid. The aim was to recover lost hydro generation that currently must be ‘spilled’ during transition periods between hydro-only and combined hydro diesel generation. This is to create a buffer in case demand spikes suddenly. However, it means sacrificing about 500kW of capacity. In addition, the ESS reduced reliance on two 1-MW diesel gensets that are powered up in summer to support peak loads and during the winter when the rivers freeze. https://www.cordovaelectric.com/cordova/cordovas-microgrid-integrates-battery-storage-with-hydropower/ And refer to expanded write up at end the end of this section 4.2 Raglan II Project, Glencore Mining Microgrid Phase 2- TUGLIQ Energy Saft Intensium ESS installed at Tugliq Raglan II project and commissioned in 2018. Two IM+20M G2 Arctic containers, 2MW, 1.76MWhMax+ • Battery containers equipped and tested in Saft’s Jacksonville factory for quick and easy installation. 4.3 BELCO- 10 MW 5.5MWH installed 2019: As part of a long-term plan to improve power plant efficiency, the Bermuda Electric Light Company (BELCO) commissioned Saft to deliver and install a turnkey battery energy storage system (ESS). The system provideds 10 MW steady state power for spinning reserves and frequency response to maintain grid stability and up to 15 MW for the first minute if required. The system has been operating since February 2019. The operator had two objectives for the project. The first was to reduce fuel costs by using the ESS to provide spinning reserves. The second objective was to provide ultra-fast frequency response to support power quality, maintain grid stability and avoid load shedding events. Additional ESS benefits include enabling more units on light fuel oil to be switched to units operating on heavy fuel oil which is around 18% cheaper and contains 6% more energy and reduced diesel maintenance. 4.4 29 Palms Range 500 Go Electric delivered a turnkey microgrid system for a critical load at the 29 Palms military base. This microgrid includes a 150 kw / 500 kWh BESS, Go Electric patented AutoLYNC® microgrid controller, and integrates with on- site 150 kW PV and a 250 kW diesel generator. The microgrid manages the energy resources and minimizes the use of the diesel generator. Go Electric’s microgrid design also corrects a power factor issue at the site and optimizes the solar energy assets. The project was commissioned in 2019. 29 Palms is the premier training facility for the Marine Corps Air Ground Combat Center. MCAGCC's two-fold mission is to operate live fire combined arms training that promotes readiness of operating forces and to provide facilities, services, and support, responsive to the needs of tenant commands, Marines, Sailors and their families. 4.5 Camp Smith SPIDERS Phase III Microgrid; Oahu, HI Go Electric delivered two 250kW / 75 kWh LYNC© Secure® systems and two Caterpillar 725kW diesel generators to Camp Smith and integrated them into the base-wide cyber secure microgrid. Go Electric was responsible for the design and integration of the LYNC© DR® systems and the overall microgrid control for four Cat generators and Technical Proposal Nome, Alaska 9/14/21 Confidential & Proprietary Information Page 15 / 15 the batteries in a 3.5MW microgrid. Go Electric was also responsible for the integration of the 3.5MW microgrid within the camp-wide 5.0 MW cyber-DR microgrid. Go Electric was not responsible for installation or permitting for the Camp Smith project, however, supported the construction contractor and the systems integrator throughout the project. Go Electric completed the microgrid demonstration project in 2016. Camp Smith is the headquarters for US Pacific Command (PACOM) and U.S. Marine Corps Forces, Pacific. All U.S. military units located in Hawaii, and others within the Pacific theater, fall under the command of PACOM. Past Projects: > 3 year commissioning: Borrego Springs Microgrid: 2012 San Diego Gas and Electric Borrego Springs under CEC Grant CEC‐500‐2014‐ 067 ESS size 500kW/1500kWh Saft Li-ion battery installed at Borrego Springs substation. The SES can serve multiple purposes, each represented by a control mode. These modes are user selectable from a remote operator interface provided by the SES vendor and function as directed by the AES internal controller using external inputs as required to define particular grid control conditions, such as grid element currents and voltages. The SES manages all functionality within equipment ratings capabilities and self‐protection requirements. The Substation Energy System (SES) operates in the following modes: • Constant Power Charge and Discharge Mode • Peak Load Management Mode • PV Intermittency Smoothing Mode • Self‐Maintenance Mode • Standby Mode • Shutdown Mode, Field testing and integration with DMS ongoing. The Advanced Energy Storage (AES) system is used to perform functions such as scheduled dispatch, peak shaving, and load following. Borrego Springs Microgrid: San Diego Gas and Electric: $6.7 M USD https://ww2.energy.ca.gov/2014publications/CEC-500-2014-067/CEC-500-2014-067.pdf --- END OF DOCUMENT ---