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Battery Energy Storage System (BESS)
Allen Xiang+86 15088766527
15th Feb 2017
Stored Energy Solutions for a Demanding World!
Topics
What is BESS
Other ESS technologies
How to do BESS
Application of BESS
Concept of applications
Knowhow of BESS
Typical case show
Stored Energy Solutions for a Demanding World!
What is BESS
Narda ESS is a smart management system of energy, ideally for micro-grid solutions, in order to smooth power, track grid load and shave peak
Stored Energy Solutions for a Demanding World!
What is BESS
Stored Energy Solutions for a Demanding World!
Real-time monitoring and remote control on the energy storage system
Friendly interface
Distributed datalog
Multiple protocolFlexible setup
What is BESS
Stored Energy Solutions for a Demanding World!
Topics
What is BESS
Other ESS technologies
How to do BESS
Application of BESS
Concept of applications
Knowhow of BESS
Typical case show
Stored Energy Solutions for a Demanding World!
Other ESS technologies
Stored Energy Solutions for a Demanding World!
Other ESS technologies
Stored Energy Solutions for a Demanding World!
Other ESS technologies
Hydro Flywheel Compressed air Electrochemical
• Super capacitor• Lithium Iron• Flow battery• Na-S• Advance VRLA
• Electrochemical energy storage is keen solution;
• So far no any technology can complete comply the requirement of energy storage;
• Economic feasibility is the key aspect that restrict developing of energy storage.
Specific energy
Power density
Response time
Storage efficiency
Lifetime
OpEx
Environment & Safety
KP
I
Stored Energy Solutions for a Demanding World!
Other ESS technologies
Advanced lead acid, Lithium, Na-S battery has similar energy & power scale.
Energy & Power scale
Stored Energy Solutions for a Demanding World!
Other ESS technologies
Nowadays, no technology can completely comply the requirement of energy storage; Lead carbon has advantages, such as safer, larger scale, better economic, etc.
KPI
Life Safety Scale Cost Efficiency
Lead-carbon ★★★ ★★★★ ★★★★ ★★★ ★★★
Lead-acid ★★ ★★★★ ★★★★ ★★★ ★★
Li-ion ★★★ ★★ ★★ ★★ ★★★★
VRB ★★★★ ★★★ ★★★★ ★★ ★★★
NAS ★★★ ★ ★★★ ★★★ ★★
Stored Energy Solutions for a Demanding World!
Topics
What is BESS
Other ESS technologies
Application of BESS
How to do BESS
Concept of applications
Knowhow of BESS
Typical case show
Stored Energy Solutions for a Demanding World!
Applications of BESS
Stored Energy Solutions for a Demanding World!
Applications of BESS
Stored Energy Solutions for a Demanding World!
Topics
What is BESS
Other ESS technologies
Application of BESS
Concept of applications
How to do BESS
Knowhow of BESS
Typical case show
Stored Energy Solutions for a Demanding World!
Concept of applications
Stored Energy Solutions for a Demanding World!
Concept of applications
Original ramp-rate of solar farmRamp-rate control by BESS
Action of BESS
Final smooth output
Original solar generation
Stored Energy Solutions for a Demanding World!
Concept of applications
Stored Energy Solutions for a Demanding World!
Concept of applications
用电需求时段转移(时移 /套利)
削峰填谷
峰谷电价差
太阳能储能
能量时移包括:1,低电价时充,高电价时放;2,储存多余电能,在需要时或者价格高时输出;3,负载高峰时放电,低谷时充电;
应用场景:1,削峰填谷,赚差价;2,太阳能 /风能电站;户用储能系统;3,削减峰值负载;
成本精算250次 -365次循环 /年
Stored Energy Solutions for a Demanding World!
Concept of applications
功率平滑
上图表示:发电量和负载需求之间存在不平衡,在没有进行功率平滑的情况下,会出现大量波动,而进行功率平滑之后,这些波动得以抑制,系统响应则相对平顺。
通过并网的、随时可以按需提高或调低功率的发电机组进行功率平滑:当发电量出现瞬时不足时,提高发电机组的功率输出;反之,在发电量瞬时过量时,调低发电机组的功率输出。
这样的调节,对发电机组有损耗,这即是储能商业模式的基础;
North American Electric Reliability Council’s (NERC’s) Real Power Balancing Control Performance (BAL001) and Disturbance Control Performance (BAL002) Standards
Stored Energy Solutions for a Demanding World!
Concept of applications
调频
当负载和发电机组之间出现不平衡时,为保证系统频率和稳定性,需要作出多种响应:首先,在最初的几秒内进行一次频率调整,发电机组调速增加发电出力;接下来,在半分钟至几分钟的时间里进行二次频率调整,如图中虚线所示。值得注意的是,发电机组或传输线路突然发生故障后,频率衰减的速率与电网在那一瞬间的总惯性成正比,大型发电机组的旋转质量和 /或很多小型发电机组的总质量共同决定了这一惯性。惯性和调速动作共同决定了频率衰减及复原的速率。
在 Arresting和 Rebound这两个阶段,就是飞轮或电池储能系统进行快速响应,调频频率的阶段;这与功率平滑类似,但响应时间更短, 1分钟之内,秒级。
Frequency response is very similar to regulation, except it reacts to system needs in even shorter time periods of less than a minute to seconds when there is a sudden loss of a generation unit or a transmission line.Arresting & Rebound period is the window of time in which the fast-acting response of flywheel and battery storage systems excels in stabilizing the frequency
Stored Energy Solutions for a Demanding World!
Concept of applications
电网的运行需要备用容量,以便在部分正常供电设施突然不可用时进行供电。一般情况下,备电容量至少与供电系统中的最大单体电源(最大单体发电机组)容量相当,要达到正常供电容量的15%-20%。
备电类型 响应 /时长 电池储能
同步备电 10s – 10min Yes
异步备电 10min – 30min Yes
补充备电 1h – 其他机组
注:大型电力 UPS系统,一套电池储能功率相当于一个发电机组
寿命、性能、总价
Stored Energy Solutions for a Demanding World!
Concept of applications
负载跟踪 /谐波支撑
储能系统非常适合抑制风能、光伏等可再生能源系统产生的波动,这与储能系统对快速或随机波动的负载作出响应的情况相同。绝大多数情况下可再生能源储能系统会给出谐波上升和下降的预期最大速率(单位是MW/min)和谐波的持续时间,这对负载跟踪和谐波支撑都适用,因此二者可以等同视之。负载跟踪的特点是功率输出每几分钟就变化一次,不断在供电和负载之间作出平衡。
储能系统适用于负载跟踪的原因:1. 瞬时响应2. PSCO时保持 95%效率
备电类型 时长 特点功率平滑 15min – 60min 混动负载跟踪 15min – 60min 起停调频( 50-60Hz)
1s-1min 制动 /助推
Stored Energy Solutions for a Demanding World!
Concept of applications
电压支撑
1. 储能系统在放电、充电、不放电也不充电三种情况下提供电压支撑服务;2. 电压支撑需要的额定时间约为 30min,在这段时间内,电网系统得以稳定,必要时开始有序分级卸载,以匹配发电量相。偶发性,稳压
黑启动
储能系统在电网内提供主动的功率和能量储备 , 以便在电网发生灾难性故障之后 ,为输配电线路供电 , 并为电站供电启动发电设备。要求低于 UPS的充电宝
Stored Energy Solutions for a Demanding World!
Concept of applications
延迟输电设施升级峰值负荷偶然 >输电系统承载能力(譬如变压器):1. 如果换用新变压器,就会根据评估考虑 15-20年后的规格,就会超配,变压器服务寿命内大部分功率未用到,是投资浪费;2. 若此时不换新,假装储能系统,则可以解决峰值问题,同时延长现有变压器寿命;延迟升级、减少投资、提高资产利用率;
缓解输电线路拥堵上述场景的升级版进一步缓解线路压力;
Stored Energy Solutions for a Demanding World!
Concept of applications
需求侧响应
需求侧响应内容 方案电能质量 稳压 UPS
用电可靠性 UPS
零售电能时移 ESS
高峰用电费管理 EV, PV+ ESS,热泵,储冷
Stored Energy Solutions for a Demanding World!
Topics
What is BESS
Other ESS technologies
Application of BESS
Concept of applications
How to do BESS
Knowhow of BESS
Typical case show
Stored Energy Solutions for a Demanding World!
How to do BESS
Stored Energy Solutions for a Demanding World!
How to do BESS
ES BOX STBESS
Stored Energy Solutions for a Demanding World!
How to do BESS
EPC
Document verification (Govt)
SCADA
PCS
Battery
Solar
Construction
Approval
Canadian Solar
IESOUtility
Stored Energy Solutions for a Demanding World!
How to do BESS
Find out pain point or true requirement
Learn how to operation BESS
Offer best battery configuration
Give clear control logic to EMS
Setup whole BESS system
Engineering work
Stored Energy Solutions for a Demanding World!
How to do BESS
Stored Energy Solutions for a Demanding World!
Topics
What is BESS
Other ESS technologies
Application of BESS
How to do BESS
Concept of applications
Knowhow of BESS
Typical case show
Stored Energy Solutions for a Demanding World!
Knowhow of BESS
Knowhow of Hardware & Engineering
Knowhow of technical proposal
Stored Energy Solutions for a Demanding World!
Island Original request Narada proposal
System configuration Function New proposal Battery technology
Upolu 4MW/2MWh Frequency protection 6MW/7MWh Lead carbon
2MW/5MWh Energy shifting
Savaii 2MW/0.75MWh Frequency protection 2MW/0.75MWh Lithium Iron Phosphate
Physically, both “Frequency Protection” and “Energy shifting” have same physically same hardware and software, the only difference is the monitored information & action trigger condition.
For battery, all the functions mentioned in above diagram, the action is same, charge & discharge; However, service life does very depend on Battery technology, Battery sizing & operation scenario; Same to PCS.
Knowhow of BESS
Stored Energy Solutions for a Demanding World!
Power output Trigger condition Condition description Note
6MW Frequency Protection & Energy shifting is at same direction
When need 2MW energy absorb and need 4MW battery charge since frequency is higher
Extreme condition
4MW Frequency Protection & Energy shifting is at same direction But no need full power operation
Advantage of combination solution:1, Simply the solution2, Save cost of total solution3, Save & protect system by counteract reversed actions;4, Increase the maximum capability for each single function
2MWAt different demand direction; Or partial power needed
Saving & protect system by counteract two actions0MW
-2MW
-4MW Frequency Protection & Energy shifting is at same direction But no need full power operation
-6MW Frequency Protection & Energy shifting is at same direction
When need 2MW energy output and need 4MW battery discharge since frequency is lower
Extreme condition
Knowhow of BESS
Stored Energy Solutions for a Demanding World!
Topics
What is BESS
Other ESS technologies
Application of BESS
How to do BESS
Concept of applications
Knowhow of BESS
Typical case show
Stored Energy Solutions for a Demanding World!
Gonghe county, Qinghai province, China
CGN off-grid storage project
Project highlightsThe largest project of off-grid storage in China, with three
stages in construction, to provide electricity in no-grid area
• PV generation: 2.058MWp
• Storage capacity: 6MWh• Battery type: GFMJ-1500• Battery quantity:
2004pcs• Project date: 2014.05
Stored Energy Solutions for a Demanding World!
Gonghe county, Qinghai province, China
CGN off-grid storage project
More references
Stored Energy Solutions for a Demanding World!
Olympic park, Beijing, ChinaHanergy FE power station
Project highlightsIt generates 70KWh power per day to satisfy electricity
demand for 400 people, that can be installed in half hour by 4 persons
• PV generation: 19.2KWp
• Storage capacity: 144KWh
• Battery type: GFM-1000RC
• Battery quantity: 72pcs• Project date: 2014.09
Stored Energy Solutions for a Demanding World!More references
Olympic park, Beijing, ChinaHanergy FE power station
Stored Energy Solutions for a Demanding World!
Changping district, Beijing, ChinaCNR micro-grid demonstration
Project highlightsTwo operational modes: On-grid and islanding power to
shift peak load and realize the central energy management
• PV generation: 275KWp
• Storage capacity: 1MWh• Battery type: REX-400• Battery quantity: 350pcs• Project date: 2013.10
Stored Energy Solutions for a Demanding World!More references
Changping district, Beijing, ChinaCNR micro-grid demonstration
Stored Energy Solutions for a Demanding World!
Lin'an city, Zhejiang province, ChinaNarada hybrid storage
Project highlightsThe original hybrid storage system with both VRLA and
LFP batteries, controlled by integrated heat management
• PV generation: 57KWp
• Storage capacity: 2MWh• VRLA capacity: 1.5MWh• LFP capacity: 400KWh• Project date: 2011.07
Stored Energy Solutions for a Demanding World!More references
Lin'an city, Zhejiang province, ChinaNarada hybride storage
Stored Energy Solutions for a Demanding World!
Dong Fushan island, Zhejiang province, China
Guodian PV-wind-diesel & storage
Project highlightsThe second largest micro-grid system by 2011, also
equipped with desalinization plants of sea water
• PV generation: 100KWp
• Wind generation: 210KWp
• Diesel generation: 200KWp
• Storage capacity: 960KWh
• Project date: 2010.11
Stored Energy Solutions for a Demanding World!More references
Dong Fushan island, Zhejiang province, China
Guodian PV-wind-diesel & storage
Stored Energy Solutions for a Demanding World!
Project highlights
• Wind generation: 2.5MWp
• Storage capacity: 1.87MWh
• Battery type: GFM-1000RC
• Battery quantity: 936pcs• Project date: 2013.08
Yancheng city, Jiangsu province, ChinaDafeng off-grid wind storage
The biggest off-grid wind power station in China, also equipped with three desalinization units of sea water
Stored Energy Solutions for a Demanding World!More references
Yancheng city, Jiangsu province, ChinaDafeng off-grid wind storage
Stored Energy Solutions for a Demanding World!
Turpan city, Xinjiang region, ChinaNational model city of new energy
Project highlightsThe first demonstrative city of micro grid, with PV
installation of 8.7MWp at first period, total 13.4MWp
• PV generation: 8.71MWp
• Storage capacity: 1.2MWh• Battery type: GFM-
1000/500RC• Battery quantity:
300+600pcs• Project date: 2012.11
Stored Energy Solutions for a Demanding World!More references
Turpan city, Xinjiang region, ChinaNational model city of new energy
Stored Energy Solutions for a Demanding World!
Dongtou county, Zhejiang province, ChinaOn-grid project in Luxi island
Project highlightsThis project is a part of the National High-tech R&D Program, typical demonstrative case of micro-grid
• PV generation: 300KWp
• Wind generation: 1560KWp
• Ultra capacitor: 500KW*15s
• Storage capacity: 4MWh• Project date: 2013.03
Stored Energy Solutions for a Demanding World!More references
Dongtou county, Zhejiang province, ChinaOn-grid project in Luxi island
Stored Energy Solutions for a Demanding World!
Zhuhai city, Guangdong province, ChinaMicro-grid in Wanshan islands
Project highlightsThe largest project of micro grid in China, distributing in three islands, to provide electricity for daily lives
there
• PV generation: 1MWp
• Wind generation: 750KW*5
• Battery type: GFM-2000RC
• Storage capacity: 8.4MWh
• Project date: 2013.02
Stored Energy Solutions for a Demanding World!More references
Zhuhai city, Guangdong province, ChinaMicro-grid in Wanshan islands
Stored Energy Solutions for a Demanding World!
Shenzhen city, Guangdong province, China
Wind-PV and storage integration
Project highlightsThe integration of 50KW wind and 100KW PV system,
and the total storage is 2.9MWh from 3 sorts of batteries
• PV generation: 100KWp
• PbC batteries: 900KWh• Gel batteries: 900KWh• LFP batteries: 1100KWh• Project date: 2015.11
Stored Energy Solutions for a Demanding World!More references
Shenzhen city, Guangdong province, China
Wind-PV and storage integration
Stored Energy Solutions for a Demanding World!
Foshan city, Guangdong province, China863 project of energy storage
Project highlights
• PV generation: 5.5MWp • Storage capacity: 1.5MWh• Battery type: GFM-1000RC• Battery quantity: 312pcs• Project date: 2013.12
The first research program on the intermittent energy consumption for active distribution network in China
Stored Energy Solutions for a Demanding World!More references
Foshan city, Guangdong province, China863 project of energy storage
Stored Energy Solutions for a Demanding World!
Zhang Jiakou city, Hebei province, ChinaZhangbei new energy base (1st period)
Project highlightsThe world class demonstrative project, integrated with
total 500MW wind, 100MW PV and 110MWh storage
• PV generation: 40MWp
• Wind generation: 100MWp
• Battery type: GFM-1200RC
• Storage capacity: 6.68MWh
• Project date: 2013.09
Stored Energy Solutions for a Demanding World!More references
Zhang Jiakou city, Hebei province, ChinaZhangbei new energy base (1st period)
Stored Energy Solutions for a Demanding World!
Project highlights
• Wind generation: 100KWp
• Storage capacity: 270KWh
• Battery type: GFM-1000RC
• Battery quantity: 135pcs• Project date: 2011.10
Ulanqab city, Inner Mongolia, ChinaWind power station in prairie
The biggest wind power station in Asia, partially equipped with storage system to smooth the power
Stored Energy Solutions for a Demanding World!More references
Ulanqab city, Inner Mongolia, ChinaWind power station in prairie
Thanks!