Download FOSS SPEC. 1 - 016 Battery Storage System and EMS 1.0 SCOPE

FOSS SPEC. 1-016, Issue 1.0
Dated 5 May 2017
FOSS SPEC. 1 - 016
Battery Storage System and EMS
1.0
SCOPE
1.1
GENERAL
This specification covers the design requirements for Battery Storage System components
(inverter, battery), EMS and Communication Capabilities.
1.2
1.3.
APPROVED TYPES
Type
Description
1
Storage system with 1PH 2.5-6kVA Battery Inverter, AC power at
45°C continuously with grid-tie functionality for home applications
10-12kWh(1) for AC-coupled systems.
2
Storage system with 3PH 4-8kVA Battery Inverter, AC power at 45°C
continuously with grid-tie functionality for home applications 1015kWh(1) for AC-coupled systems.
3
Storage system with 1PH 2.5-6kVA Hybrid Inverter, AC power at
45°C continuously with grid-tie functionality for home applications
10-12kWh(1) for DC-coupled systems.
4
Storage system with 3PH Hybrid Inverter 4-8kVA, AC power at 45°C
continuously with grid-tie functionality for home applications 1015kWh(1) for DC-coupled systems.
5
Storage system with 3PH Battery Inverter 15-20kVA, AC power at
45°C continuously with grid-tie functionality for AC-coupled systems
suitable for community applications 40-50kWh(1).
Type Description
Type 1: Single-phase Battery Inverter with grid-tie functionality for home applications for ACcoupled systems.
This type shall be suitable for single phase home applications where a 3kWp PV system is
installed for homeowners consuming annually 5000kWh. The Storage for this purpose will be
of 10-12kWh Lithium ion battery and battery cycle life > 5000.
Type 2: Three-phase Battery Inverter with grid-tie functionality for home applications for ACcoupled systems.
This type shall be suitable for three phase home applications where a 5kWp PV system is
installed for homeowners consuming annually 8400kWh. The Storage for this purpose will be
of 10-15kWh Lithium ion battery and battery cycle life > 5000.
Type 3: Single-phase where a Hybrid Inverter will replace the existing PV inverter (or new
installation) with grid-tie functionality for home applications for DC-coupled systems.
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FOSS SPEC. 1-016, Issue 1.0
Dated 5 May 2017
This type shall be suitable for single phase home applications where a 3kWp PV system is
installed for homeowners consuming annually 5000kWh. The Storage for this purpose will be
of 10-12kWh Lithium ion battery and battery cycle life > 5000.
Type 4: Three-phase where a Hybrid Inverter will replace the existing PV inverter (or new
installation) with grid-tie functionality for home applications for DC-coupled systems.
This type shall be suitable for three phase home applications where a 5kWp PV system is
installed for homeowners consuming annually 8400kWh. The Storage for this purpose will be
of 10-15kWh Lithium ion battery and battery cycle life > 5000.
Type 5: Storage system with three-phase Battery Inverter15-20kVA with grid-tie functionality
for AC-coupled systems suitable for community applications and capable of communicating
with the DSO control centre.
This type shall be suitable for three phase community applications where a number of rooftop
PV systems will be connected on the low voltage grid. The Storage for this purpose will be of
40-50kWh Lithium ion battery and battery cycle life > 5000.
2.0
REFERENCES
This specification incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate place in the text and
the publications. For undated references, the latest edition of the cited publication applies.
3.0
GENERAL TECHNICAL REQUIREMENTS
Auxiliary or Associated equipment Note: All system requirements described in this document
might be fulfilled by the main part of the equipment (i.e. the inverter unit) or if accompanied with
installation of additional equipment such as energy meters, home unit control and monitoring
displays, communication devices etc. In all such cases, the offer should clearly indicate all
the required components necessary to build an according to the specifications system
(mandatory and optional). The Contract provides for all parts of the work to be completed
in every respect for commercial operation. Any details, accessories, etc. required for the
complete installation and satisfactory operation of the storage system, according to
national wiring regulations, as a whole and not specifically mentioned in the Specification,
are to be considered as included in the offer.
3.1
System Operating Conditions for home applications
3.1.1. General Configuration – Energy Management
a. The system should provide a convenient way of managing home energy, be user friendly,
configured using graphical, programmable interface, with functions to provide a
comprehensive overview of its components, allowing the level of self-consumption to be
seen and remote system monitoring and configuration (web access on PC, Smartphone
app).
b. The EMS must allow for custom control algorithms to be programmed or it must allow full
control via a communication link (Ethernet, CAN, etc.)
3.1.2
System Operating Conditions - mandatory requirements
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FOSS SPEC. 1-016, Issue 1.0
Dated 5 May 2017
The main purpose for installation: efficient and economical method for maximizing selfconsumption via storing photovoltaic generated power, in 1PH or 3PH systems as defined in
approved types.
The system shall operate in the following modes:
a. Increase self-consumption
b. Peak load shaving
c. Time of Use tariffs
d. Support DC-coupled and/or AC-coupled off-grid and grid-tie operation as indicated in
contract requirements.
e. Must be compatible with Grid system operating parameters as listed in table No 1
The system shall be versatile and allow multi-use operation depending on user needs in
response of tariff options and system needs. Time of Use response through the utilization of
a reversible inverter should be readily available offering energy management options that can
fully satisfy the implications of such an option. The system shall also provide for backup in
case of grid outage.
The system is required to provide voltage retention capability (Improvement in grid quality by
reactive power provision or absorption) along with all the advanced features of inverters that
are declared as mandatory by the T&D rules of the hosting country.
3.1.3 System non mandatory requirements
It should be considered an advantage if the system can:
a. make use of local weather forecasts to predict solar power generation
b. be ready to support future communication standards for smart home applications
c. be ready to provide the required logic to control all compatible household devices as
well as heating, air conditioning and ventilation systems, integrating them into the
energy management system
d. Maintain on-grid connectivity, subject to suitable parameterisation, during system
frequency disturbance incidents in order to support the system frequency restoration
effort.
e. Must support remote supervision, telemetering and control by a centralised
SCADA/DMS energy dispatch centre. Functionality must be available so that the
system can accept operational settings and set-points under both normal as well as
emergency system operating conditions. Tenderers should submit details of the
supported functions and protocols.
f. In addition to point 3.1.3(e), the inherent support of IEC 60870-5-104 for direct SCADA
communication integration will be considered an advantage
3.2.
System Operating Conditions for community applications
The main purpose for installation: efficient and optimal method for grid energy use using 3PH
local community storage system as defined in approved types capable of communicating with
the DSO control centre.
The system shall operate in the following modes:
a. Optimal power balancing through feedback from system parameters (feeder load,
transformer load, voltage, frequency both local at the substation but also remotely
through DSO on line data) or through all local sensors related to the feeder when
communication facilities are made available.
b. Support AC coupled off-grid and grid-tie operation
c. Must support remote supervision, telemetering and control by a centralised
SCADA/DMS energy dispatch centre. Functionality must be available so that the
system can accept operational settings and set-points under both normal as well as
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FOSS SPEC. 1-016, Issue 1.0
Dated 5 May 2017
emergency system operating conditions. Tenderers should submit details of the
supported functions and protocols.
The system shall be versatile and allow multi use operation depending on user needs in
response of tariff options and system needs. Time of Use response through the utilization of
a reversible inverter should be readily available offering energy management options that can
fully satisfy the implications of such an option. The system shall also provide for backup in
case of grid outage.
The system is required to provide voltage support capability for improvement of grid voltage
by reactive power provision or absorption and maintain on-grid connectivity, subject to
suitable parameterisation, during system frequency disturbance incidents in order to support
the system frequency restoration effort.
3.3.
Assessment Note
The offered systems will be considered as complying with the specifications when they meet
the mandatory requirements of sections 3.1.2 and 3.2, the Technical requirements of section
3.4 and also when they are sized in accordance with the Approved Types. The economic
assessment will take place on a per unit (price per kW and kWh) basis. Further in the
evaluation process an assessed price will be deduced in the following manner: the offered
systems of the approved types 1-4, not complying with the “Non mandatory requirements”
will be penalised by 3% of the offered price, for each of the non-conformed requirement.
3.4.
Technical requirements for all Inverters
Table No 1
Support charging technology
Nominal Voltage
Lithium Ion battery packs
1PH: 230VAC 10%
3PH: 400VAC 10%
Nominal Frequency
50Hz
Total harmonic distortion
< 5%
Power factor (cos φ)
Ingress protection
Inverter design
Cooling
Installation
Permitted humidity
Ambient temperature range
AC Voltage Regulation
0.85 – 1
inductive / capacitive
IP55 (at least)
Transformerless
Regulated air cooling
Indoor and outdoor installation
0 - 100 %
-15°C to +60°C
1PH: 230VAC ± 5%
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FOSS SPEC. 1-016, Issue 1.0
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(Batt. Mode)
3PH: 400VAC ± 5%
Peak Efficiency
>95%
Communication with EMS or
external controller
Ethernet or CAN or RS485 (anything compatible with the
EMS)
Communication with battery
Ethernet or CAN or RS485 (anything compatible with the
battery)
Communication with electricity
meter
RS485 (usually)
EMC:
EN61000-3-2 (harmonic current emissions)
EN61000-3-3 (voltage fluctuations and flicker)
EN61000-6-1 or EN55014-2 (immunity)
EN61000-6-3 or EN55014-1 (emissions)
Electrical Safety:
EN50106 (household electrical appliances)
Certificates and compliance with
EN50178 [replaced by EN62477-1] (power electronic
standards
converters and equipment)
EN60335-1 (household electrical appliances)
EN60664-1 (insulation coordination for low voltage systems)
EN62109 (power converters for PV systems)
Fire Protection:
EN60695-11-10 (fire hazard testing, 50W)
EN60695-11-20 (fire hazard testing, 500W)
3.4.
Technical requirements for Battery
Table No 2
Technology
Nominal Voltage
Nominal Power
Ingress protection
Cooling
Lithium Ion
48 VDC preferable
(any other voltage compatible with the inverter)
3kW
IP34 (preferable)
IP24 (acceptable)
Regulated air cooling
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FOSS SPEC. 1-016, Issue 1.0
Dated 5 May 2017
Installation
Indoor installation
Permitted humidity
0 - 100 %
Ambient temperature range
0°C to +50°C
Efficiency @ 0.3C, 25°C
>90%
Battery lifetime @ 25°C
20 years
Battery cycles @ 0.5C, 100%
DOD of usable capacity, 25°C
Communication with inverter
>5000
Ethernet or CAN or RS485 (anything compatible with the
inverter)
Battery Safety:
IEC62281 or UN/DOT 38.3 (transportation testing for lithium
batteries)
IEC61233 or UL2054 (global battery safety regulations)
IEC62133 or UL1642 (safety test for lithium batteries)
EN50272 (general safety requirements for secondary
batteries)
EN62619 (safety requirements for secondary lithium cells and
batteries)
EMC:
EN61000-6-1 or EN55014-2 (immunity)
Certificates and compliance with
standards
EN61000-6-3 or EN55014-1 (emissions)
Electrical Safety:
EN50106 (household electrical appliances)
EN50178 [replaced by EN62477-1] (power electronic
converters and equipment)
EN60335-1 (household electrical appliances)
EN60664-1 (insulation coordination for low voltage systems)
Fire Protection:
EN60695-11-10 (fire hazard testing, 50W)
EN60695-11-20 (fire hazard testing, 500W)
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FOSS SPEC. 1-016, Issue 1.0
Dated 5 May 2017
3.5.
Technical requirements for Battery Storage System (inverter + battery + EMS)
Inverter requirements
See Table No 1
Battery requirements
See Table No 2
IP20
Ingress Protection
(acceptable if cabinet system, enclosed individual
components are of minimum IP24)
Battery Safety:
IEC62281 or UN/DOT 38.3 (transportation testing for
lithium batteries)
IEC61233 or UL2054 (global battery safety regulations)
IEC62133 or UL1642 (safety test for lithium batteries)
EN50272 (general safety requirements for secondary
batteries)
EN62619 (safety requirements for secondary lithium cells
and batteries)
EMC:
EN61000-3-2 (harmonic current emissions)
EN61000-3-3 (voltage fluctuations and flicker)
EN61000-6-1 or EN55014-2 (immunity)
EN61000-6-3 or EN55014-1 (emissions)
Certificates and compliance
with standards
EN62040-2 (UPS)
EN62052-11 (AC metering equipment)
Electrical Safety:
EN50106 (household electrical appliances)
EN50178 [replaced by EN62477-1] (power electronic
converters and equipment)
EN60065 (audio, video and similar electronic apparatus)
EN60335-1 (household electrical appliances)
EN60664-1 (insulation coordination for low voltage
systems)
EN62040-1 (UPS)
EN62109 (power converters for PV systems)
Fire Protection:
EN60695-11-10 (fire hazard testing, 50W)
EN60695-11-20 (fire hazard testing, 500W)
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FOSS SPEC. 1-016, Issue 1.0
Dated 5 May 2017
4.0
TECHNICAL SCHEDULES TO BE FILLED BY SUPPLIERS
A. Technical Parameters (To be completed for every Type offered)
A.1 Inverter Technical Specifications
Description
Units
Nominal Voltage
V
Voltage range
V
Nominal Frequency
Hz
Frequency range
Hz
Power @ 45°C, continuous
kVA
Power @ 45°C, 30mins
kVA
Power @ 45°C, 5mins
kVA
Total harmonic distortion
Value Offered
%
Power factor (cos φ)
Ingress protection
Inverter design
(1)
Cooling method
Installation
(2)
Permitted humidity
%
Ambient temperature range
°C
AC Voltage Regulation
%
(Batt. Mode)
Peak Efficiency
%
Communication with EMS or
external controller
(2)
Communication with battery
(2)
Communication with
electricity meter
(2)
Certificates and compliance
with standards
(2)
Weight
Kg
Dimensions (WxHxD)
mm
(1) See Technical specifications for clarification.
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Description
A.2 Battery Technical Specifications
Units
Value Offered
Nominal Voltage
Voltage range
V
V
Power @ 45°C, continuous
Power @ 45°C, 30mins
Power @ 45°C, 5mins
Ingress protection
Cooling
Installation
kW
kW
kW
(2)
(2)
Permitted humidity
Ambient temperature range
Efficiency @ 0.3C, 25°C
Battery lifetime @ 25°C
%
°C
%
Years
Battery cycles @ 0.5C,
100% DOD of usable
capacity, 25°C
(2)
Communication with inverter
Certificates and compliance
with standards
Weight
Kg
Dimensions (WxHxD)
mm
Compliance with System non mandatory requirements
Requirement
YES
NO
a
b
c
d
e
f
B. List of system installations in service today and other work on hand
System Description
Location
Capacity Commissioning Other Details
kW/kWh
Date
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