A vertically-integrated BESS solutions provider
Proposal for BESS Supply
Project:
Location: Vietnam
Date: Jan 2025
Revision: 02
1 ©2024 Trina Storage Proprietary and Confidential. All Rights Reserved.
Outline
1. About Us
2. BESS Solution Proposal
3. Components Specifications
4. Terms & Conditions
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Introduction
Dear,
Thank you for your trust and the opportunity to share our BESS proposal with you. The following slides present our solution for your
BESS pipeline. We have designed the project based on PCS from Sineng AND Trinasolar’s own ELEMENTA 2 outdoor battery cabinet
product.
We are happy to further optimize the solution based on your feedback. We look forward to working together on this project and
becoming your trusted long-term partner on future opportunities.
Best Regards,
Trina Storage team
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About Trina Storage
Trina Storage
COMPANY
INTRODUCTION
Our Mission
Trina Storage, a business unit of Trinasolar established in 2015, is a
global leader in energy storage products and solutions, dedicated to
transforming the way we provide energy. Our mission is to lead the
renewable energy transition through cost-competitive storage and to
provide solar for everyone by expanding solar generation at scale.
Leveraging over 26 years of expertise in solar manufacturing, we offer
cost-effective and flexible storage solutions to meet the diverse needs
of our global customers.
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Vertical Integration - Manufacturing & Integration Capability
Manufacturing
Cell Battery Pack Storage BMS Cloud Control Unit
System Monitoring
Integration
12 GWh; Cell to System 45,000 M2 Located in HQ
Integration capacity Planned area of base Changzhou, China
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Vertical Integration - R&D Capability
R&D Platform Battery Cell R&D
Advanced energy storage technology
Reliability &
research institute Mechanism Research
Simulation
Energy storage engineering center
Materials Pre- Testing &
research Identification
Digital Power research institute
Power electronic research and Sample Center Cell Development
development center
Patent application Patent for invention R&D team Test equipment Test channel Precision detection equipment
1000+ 200+ 500+ 400+ 7000+ 60+
6
Global Manufacturing Capacity
Changzhou
Base
Dafeng Base
Chuzhou
Base
LFP Battery Cell Energy Storage Pack
Cell, Cabinet and AC Solutions
Integrated Smart Energy Energy Storage
By the end of 2023 By the end of 2024 Management System
12GWh 25GWh
7
Our Value Proposition
Technology and
innovation-driven
Safe and Reliable
Industry-leading manufacturing
capability
Profitable
Secured supply chain
Ultra Long life
Optimized and customized
solution
Intelligent and advanced
Bankability
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Strict Quality Control
Research & Development Quality
The IPD process & NPI import Material & Supplier Quality
process
Avoiding quality problems Supplier Audit and Admission Production & Shipment Quality
Principles PPAP Process After-sales service Quality
by design
Ensuring the quality of incoming Implement MES and QMS system
control Based on cloud platform and big
materials
data model
Ensuring product consistency
and quality Providing early warning and
protection
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Proposal for BESS supply
System Configuration
N.204 ELEMENTA
PCS
Trina’s modular concept gives maximum
flexibility for different project sizes with
minimal oversizing.
Our capacity augmentation strategy is
realized by re-arranging the existing
battery racks and connection of a group of
new battery racks to a module of the PCS
system.
Power Plant Controller
MV Skid
communication
electric cables
*the image does not reflect the actual system configuration. It is just for demonstration.
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BESS Solution
Proposal
Project Name:
BESS Size: 2.5 MW | 5 MWh
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Proposal for BESS supply
Project Overview – 2.5 MW | 5 MWh
Rated Power 2.5 MW Provided
Project Required Capacity 5 MWh (BoL) Provided
Requirements Constant Capacity Term BoL of ≥ 5 MWh Design Provided
Site Conditions ≤40°C and ≤2000m asl Assumed
Nameplate capacity 5 MWh BoL
Expected Usable Capacity 4.72 MWh AC @33kV PoI, 132kV PoC
Proposed Solution 5,015 kWh, 0.5C battery cabinet (12 racks) 1 Pcs Initial Delivery
PCS (BCS2500K-B-HUD/T) Rating 2.5 MVA @40°C
PCS quantity 1
* Actual Aux Power amount is subject to change during detailed design phase.
12 BoL = Beginning of Life DoD = Depth of Discharge POC = Point Of Connection CP = Constant Power ©2024 Trina Storage Proprietary and Confidential. All Rights Reserved.
Proposal for BESS supply
Concept Design – Layout (2.5 MW | 5 MWh)
The proposed solution is composed of the
following:-
• 1 blocks of:
• 1 x [Elementa 2 (12 racks)] +
1 x [BCS2500K-B-HUD/T]
The proposed solution is designed to make
scaling up/down simple and easy to achieve and
implement on site.
The actual block layout can be adjusted
according to the customer requirements.
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©2024 Trina Storage Proprietary and Confidential. All Rights Reserved.
Proposal for BESS supply
Expected Capacity Degradation Curve (2.5 MW | 5 MWh)
The available energy at POC at time of Degradation Curve
6.00
delivery is 4.72 MWh at Year 0.
AC useable capacity calculation includes 5.00
various efficiency such as PCS (99%), MV
transformer (99.2%), cable 4.00
(99.9%*99.7%*99.35%).
AC (MWh)
3.00
This curve is based on 1 cycle per day, 100%
DOD, 0.5C simulation.
2.00
System will be augmented at the end of year
1.00
10 and 16 to meet the EoL requirement.
0.00
Project specific degradation curves based on 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
the envisaged use case of the battery should Years
be discussed in more detail at a later stage. Nameplate Capacity (considering SOH) AC-Total discharge Energy (At the end of Year) (MWh)
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Proposal for BESS supply
Scope of Supply And Pricing 2.5 MW | 5 MWh
Delivery / Service Unit Size Description Qty. Total price [USD]
• IP 55 rated outdoor enclosure, 20’ HC Container
• Liquid cooling design
• Electrical Configuration: 314Ah, 3.2V, 1P416S*12
Elementa 2 5.015 MWh • Including system BMS, HVAC, FSS, communication 1 Included
and power cables
• Fire Suppression System: Aerosol + water
• Outdoor cabinet; Coating: C4-M
• EMS from Univers
EMS - • Includes EMS System hardware 1 Included
• Includes Inaccess’ EMS software and services
PCS • 2.5 MVA @ 40 °C,
2500 KVA 1 Included
(BCS2500K-B-HUD/T) • Max efficiency : 98%
• System engineering, Project Management and
Engineering, Testing & Commissioning 1 Included
Commissioning
Product Warranty • 5 Years Standard Product Warranty 1 Included
Incoterms FOB (Any Ports in China) 1 Included
Unit System Price: $128/kWh
Total System Price : $641,920
LTSA + Extended Warranty – Year 6 to 10* : $96,288
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Components
Specifications
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Trina Storage Elementa 2
5.015 MWh (12 racks)
In-House Trina Storage cells Unique Module Design
• Proprietary Lithium-lron Phosphate (LFP) cells • Featuring independent O&M window,
• Long lifetime & higher performance, ≥95% two-way stop valve
Energy Efficiency • Intelligent liquid cooling technology -
maintains ΔT< 2 5°C
• Enhanced system performance &
efficiency
Rack-Level Energy Management
Comprehensive Safety
• Prioritizes product & personnel safety • Smart rack-level energy management;
• Implements a state-of-the-art fire precise control & optimization
mitigation & suppression system • Improved system performance by
• Advanced features to detect, prevent, & dynamically managing energy
suppress fire incidents distribution at the rack level
• International safety standards & • Rack-level HV box for cost optimization
certifications conformed
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Trina Storage Elementa 2 (12 Racks)
5.015 MWh @ 1500V DC
Key Features
• Tailored for grid scale applications
• Fully integrated and pre-fabricated
• High scalability & flexible plant design
• Increased efficiency in thermal management
• Optimized for flexibility, smooth installation and easy maintenance
Key Specifications
Nameplate Capacity 5,015 kWh Cell Capacity 314 Ah
Discharge Duration 2 – 6 hrs Rack Configuration 1P416S*12
Voltage Range 1040 – 1497.6 VDC Cell technology LFP
Cooling mode Liquid, ethylene glycol Weight 42.5 tons
Enclosure Rating IP55 Dimensions (H*W*D) 2896 x 2438 x 6058mm
Operating Ambient Temp -30 to +50 °C UL9450, UL9540A
UN38.3, UN3536
UN38.3; UL1973; UL9540A; IEC62619 Certifications (cabinet) IEC62477-1, IEC62619, IEC62933-5-2, IEC63056
Certifications (cell) EN/IEC61000-6-2/6-4
(currently under certification process)
(currently under certification process)
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Our Battery Cell
JIS 8715-2
Ultra Long Lifecycle High Efficiency
RoHS UN 38.3
Consistent Best-in-class Safety
GB/T 36276 UL 1973
IEC 62619 UL 9540A
First Generation 10,000cls Second Generation 12000cls 2025 Third Generation 15,000cls 2026 Sodium-ion Battery
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Safety As a Fundamental Priority
Cell Intrinsic Safety Thermal Safety
Cathode Material Overcharge Separator Unbalanced Temp. Field
Overdischarge Internal Short Circuit Over temperature
Weak Current Safety Structure Safety
Low Monitoring Precise EMC Crash Safety Sheet Metal Cabinet
Sampling Wires Broken BMS Fault Transportability (Hurdle) Extrusion Safety
CAN Communication Failure Waterproof Aluminum Alloy Die-Cast Cabinet
SOC Wrong Estimation Corrosion Protection SMC+ Steel Bracket
Operating Safety High Voltage Safety
Thermal Runaway Thermal Diffusion Charging Safety Insulation Fault
Internal Fire Suppression Over Current, Over Voltage, Under Voltage
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Cell
High Safety Design
Short
Overcharge
circuit
Falling Heating
Thermal
Extruding
Runaway
Over
Needling
Discharge
Before After After Before
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System Electrical
System Safety Electrical Safety
3
Multi-level Protection
1
2 PACK internal fused busbar
1
1
4
5
Quick Isolation
1
1
1
1
Loss Minimization
HV Box with built-in fuse for short-circuit
protection (DC/DC, String PCS）
Quick Response
1 Aerosol BCP fuse
Busbar short-circuit protection
2 EX detectors
3 Water FSS sprinkler 5 Smoke detectors
4 Heat detectors 6 Water FSS inlet
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Energy Management System (EMS) - Univers
For the EMS, Trina is partnering with Univers to provide the full EMS solution.
Below is the Inaccess EMS Architecture, and example of their dashboard and
control interface.
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Our Terms and Conditions
Notes and Assumptions:
1. Delivery: FOB China option.
2. Spare parts are not included in the current scope.
TrinaStorage's Standard Commercial Terms & Conditions
This proposal is subject to the following caveats and assumptions:
1. This proposal is made based on TrinaStorage's standard terms and conditions.
2. This proposal is subject to the contract. TrinaStorage reserves the right to vary any element of this proposal until definitive legal documentation is signed by contractual
parties.
3. Should the proposal include any third-party services, such applicable third-party terms and conditions will be passed through to you.
4. The proposal is valid for acceptance for a period of 30 days from the date of the proposal.
5. In the event that you wish to cancel TrinaStorage's service(s) (or any part thereof) early, applicable termination charges as per TrinaStorage's standard terms and
conditions shall apply, including all third-party charges (if applicable).
6. This proposal is subject to the local regulatory and legal restrictions. If regulatory compliance requires that changes be made to TrinaStorage’s services, the price is likely
to change, and you will be advised of the impact.
7. Any agreed changes to TrinaStorage’s service post-contract will be handled via the agreed contract change control process.
8. The contracting entity can be any branch of Trina depending on the location of the project.
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Our Terms and Conditions
Pricing Assumptions and Caveats
1. Prices are quoted in US Dollars.
2. All pricing is indicative and based on pricing information available at the time of preparation of this proposal and is subject to change for any reason including changes to
technical or service design or prices of third-party suppliers.
3. The price is based upon the solution described being provided in its entirety. In the event that only individual elements of the proposal are required, TrinaStorage reserves
the right to amend its pricing accordingly.
4. Pricing based on delivery on Q3 2025.
5. The suggested payment terms shall be paid by Telegraphic Transfer (TT) in percentage in accordance with the following milestones:
- 20% down payment is to be paid when placing the order.
- 40% upon completion of Factory Acceptance Test (FAT).
- 30% upon delivery based on incoterm agreement.
- 10% upon substantial completion/Commissioning.
6. Any recurring or on-going charges will be invoiced annually in advance during the contract term. Any amounts paid in advance shall be non-refundable, save where
TrinaStorage is in breach of the contract.
7. All charges and any other sums quoted under this proposal and any resulting contract are exclusive of any applicable taxes and duties as imposed by the relevant taxing
authorities in the countries where goods and services are to be delivered or rendered, including but not limited to sales, value-added, excise, other governmental taxes and
charges, import export taxes, surcharges, and any other taxes, which shall be charged in accordance with the relevant laws and be paid by you. All withholding taxes, levies
and similar payments imposed on sums due to TrinaStorage shall be borne and paid for by you, in addition to the sums due to TrinaStorage.
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Thank you
Website:
www.trinasolar.com/en-glb/trina-storage
Email:
lu.zhao@trinasolar.com
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