❌

Normal view

Received yesterday β€” 31 January 2026

Testing fault at 100 MW battery disrupts Estonia-Finland power link

29 January 2026 at 13:09

During testing at Estonia’s 100 MW Kiisa battery park, both EstLink 1 and EstLink 2 tripped, triggering the most severe disturbance to the regional power grid since desynchronization from the Russian electricity system. As a result, nearly 1 GW of capacity was lost within seconds. The park’s owner has since publicly pointed to the battery manufacturer.

From ESS News

A disturbance in Estonia’s power system on Jan. 20 forced both EstLink interconnections between Estonia and Finland offline, cutting roughly 1,000 MW of capacity, equivalent to about 20% of the Baltic region’s winter electricity load.

The shortfall was initially covered by support from the continental European grid, as the 500 MW AC connection between Poland and Lithuania operated at double its rated capacity to compensate. Later, reserve capacity within the Baltic states was deployed.

The oscillations were triggered by a 100 MW/200 MWh battery energy storage system in Kiisa, just south of Tallinn, one of the largest battery storage systems in the Baltics. The incident occurred during final grid connection testing, which caused the DC cables to trip.

The €100 million facility, developed by Estonian company Evecon in partnership with French firms Corsica Sole and Mirova, features 54 battery containers supplied by Nidec Conversion.

To continue reading, please visit our ESS NewsΒ website.Β 

CMC launches new brand name after container firm merger

27 January 2026 at 20:25



Intermodal equipment and maintenance provider CMC today rebranded the company under its new name, combining three container hardware companies that merged in 2023 with the intent to address a wider market for maintenance and repair (M&R) and storage services for shipping containers.

Charleston, South Carolina-based CMC is the new name for those three firms; Marine Repair Service – Container Maintenance Company (CMC), ITI Intermodal, Inc. (ITI), and Columbia Container Services (CCS).

While the company’s name and visual identity are new, CMC said the organization will continue providing best-in-class maintenance, storage, and repair services for containerized freight across the South, Northeast and Midwest regions.

β€œThis transformation represents the next step in our journey together,” Vince Marino, chief executive officer of CMC, said in a release. β€œOur new name and logo symbolize the strength that comes from the unity of three family-founded companies growing into one cohesive team. CMC stands for our shared commitment to safety, reliability, integrity, and the long-term relationships that define our success.”

Big Blue Poised To Peddle Lots Of On Premises GenAI

29 January 2026 at 05:53

If you want to know the state of the art in GenAI model development, you watch what the Super 8 hyperscalers and cloud builders are doing and you also keep an eye on the major model builders outside of these companies – mainly, OpenAI, Anthropic, and xAI as well as a few players in China like DeepSeek. …

Big Blue Poised To Peddle Lots Of On Premises GenAI was written by Timothy Prickett Morgan at The Next Platform.

Received before yesterday

Pushed By GenAI And Front End Upgrades, Ethernet Switching Hits New Highs

8 January 2026 at 21:20

But virtue of its scale out capability, which is key for driving the size of absolutely enormous AI clusters, and to its universality, Ethernet switch sales are booming, and if the recent history is any guide, we can expect Ethernet revenues will climb exponentially higher in the coming quarters as well. …

Pushed By GenAI And Front End Upgrades, Ethernet Switching Hits New Highs was written by Timothy Prickett Morgan at The Next Platform.

Real-World Diagnostics and Prognostics for Grid-Connected Battery Energy Storage Systems

12 December 2025 at 15:01


This is a sponsored article brought to you by The University of Sheffield.

Across global electricity networks, the shift to renewable energy has fundamentally changed the behavior of power systems. Decades of engineering assumptions, predictable inertia, dispatchable baseload generation, and slow, well-characterized system dynamics, are now eroding as wind and solar become dominant sources of electricity. Grid operators face increasingly steep ramp events, larger frequency excursions, faster transients, and prolonged periods where fossil generation is minimal or absent.

In this environment, battery energy storage systems (BESS) have emerged as essential tools for maintaining stability. They can respond in milliseconds, deliver precise power control, and operate flexibly across a range of services. But unlike conventional generation, batteries are sensitive to operational history, thermal environment, state of charge window, system architecture, and degradation mechanisms. Their long-term behavior cannot be described by a single model or simple efficiency curve, it is the product of complex electrochemical, thermal, and control interactions.

Most laboratory tests and simulations attempt to capture these effects, but they rarely reproduce the operational irregularities of the grid. Batteries in real markets are exposed to rapid fluctuations in power demand, partial state of charge cycling, fast recovery intervals, high-rate events, and unpredictable disturbances. As Professor Dan Gladwin, who leads Sheffield’s research into grid-connected energy storage, puts it, β€œyou only understand how storage behaves when you expose it to the conditions it actually sees on the grid.”

This disconnect creates a fundamental challenge for the industry: How can we trust degradation models, lifetime predictions, and operational strategies if they have never been validated against genuine grid behavior?

Few research institutions have access to the infrastructure needed to answer that question. The University of Sheffield is one of them.

Rows of battery racks with red connectors in a power storage facility.Sheffield’s Centre for Research into Electrical Energy Storage and Applications (CREESA) operates one of the UK’s only research-led, grid-connected, multi-megawatt battery energy storage testbeds. The University of Sheffield

Sheffield’s unique facility

The Centre for Research into Electrical Energy Storage and Applications (CREESA) operates one of the UK’s only research-led, grid-connected, multi-megawatt battery energy storage testbeds. This environment enables researchers to test storage technologies not just in simulation or controlled cycling rigs, but under full-scale, live grid conditions. As Professor Gladwin notes, β€œwe aim to bridge the gap between controlled laboratory research and the demands of real grid operation.”

At the heart of the facility is an 11 kV, 4 MW network connection that provides the electrical and operational realism required for advanced diagnostics, fault studies, control algorithm development, techno-economic analysis, and lifetime modeling. Unlike microgrid scale demonstrators or isolated laboratory benches, Sheffield’s environment allows energy storage assets to interact with the same disturbances, market signals, and grid dynamics they would experience in commercial deployment.

β€œThe ability to test at scale, under real operational conditions, is what gives us insights that simulation alone cannot provide.” β€”Professor Dan Gladwin, The University of Sheffield

The facility includes:

  • A 2 MW / 1 MWh lithium titanate system, among the first independent grid-connected BESS of its kind in the UK
  • A 100 kW second-life EV battery platform, enabling research into reuse, repurposing, and circular-economy models
  • Support for flywheel systems, supercapacitors, hybrid architectures, and fuel-cell technologies
  • More than 150 laboratory cell-testing channels, environmental chambers, and impedance spectroscopy equipment
  • High-speed data acquisition and integrated control systems for parameter estimation, thermal analysis, and fault response measurement

The infrastructure allows Sheffield to operate storage assets directly on the live grid, where they respond to real market signals, deliver contracted power services, and experience genuine frequency deviations, voltage events, and operational disturbances. When controlled experiments are required, the same platform can replay historical grid and market signals, enabling repeatable full power testing under conditions that faithfully reflect commercial operation. This combination provides empirical data of a quality and realism rarely available outside utility-scale deployments, allowing researchers to analyse system behavior at millisecond timescales and gather data at a granularity rarely achievable in conventional laboratory environments.

According to Professor Gladwin, β€œthe ability to test at scale, under real operational conditions, is what gives us insights that simulation alone cannot provide.”

Man in a suit stands in a lab with equipment and computer showing graphics.Dan Gladwin, Professor of Electrical and Control Systems Engineering, leads Sheffield’s research into grid-connected energy storage.The University of Sheffield

Setting the benchmark with grid scale demonstration

One of Sheffield’s earliest breakthroughs came with the installation of a 2 MW / 1 MWh lithium titanate demonstrator, a first-of-a-kind system installed at a time when the UK had no established standards for BESS connection, safety, or control. Professor Gladwin led the engineering, design, installation, and commissioning of the system, establishing one of the country’s first independent megawatt scale storage platforms.

The project provided deep insight into how high-power battery chemistries behave under grid stressors. Researchers observed sub-second response times and measured the system’s capability to deliver synthetic inertia-like behavior. As Gladwin reflects, β€œthat project showed us just how fast and capable storage could be when properly integrated into the grid.”

But the demonstrator’s long-term value has been its continued operation. Over nearly a decade of research, it has served as a platform for:

  • Hybridization studies, including battery-flywheel control architectures
  • Response time optimization for new grid services
  • Operator training and market integration, exposing control rooms and traders to a live asset
  • Algorithm development, including dispatch controllers, forecasting tools, and prognostic and health management systems
  • Comparative benchmarking, such as evaluation of different lithium-ion chemistries, lead-acid systems, and second-life batteries

A recurring finding is that behavior observed on the live grid often differs significantly from what laboratory tests predict. Subtle electrical, thermal, and balance-of-plant interactions that barely register in controlled experiments can become important at megawatt-scale, especially when systems are exposed to rapid cycling, fluctuating set-points, or tightly coupled control actions. Variations in efficiency, cooling system response, and auxiliary power demand can also amplify these effects under real operating stress. As Professor Gladwin notes, β€œphenomena that never appear in a lab can dominate behavior at megawatt scale.”

These real-world insights feed directly into improved system design. By understanding how efficiency losses, thermal behavior, auxiliary systems, and control interactions emerge at scale, researchers can refine both the assumptions and architecture of future deployments. This closes the loop between application and design, ensuring that new storage systems can be engineered for the operational conditions they will genuinely encounter rather than idealized laboratory expectations.

Ensuring longevity with advanced diagnostics

Battery testing unit with connected cables and a metal duct.Sheffield’s Centre for Research into Electrical Energy Storage and Applications (CREESA) enables researchers to test storage technologies not just in simulation or controlled cycling rigs, but under full-scale, live grid conditions.The University of Sheffield

Ensuring the long-term reliability of storage requires understanding how systems age under the conditions they actually face. Sheffield’s research combines high-resolution laboratory testing with empirical data from full-scale grid-connected assets, building a comprehensive approach to diagnostics and prognostics. In Gladwin’s words, β€œA model is only as good as the data and conditions that shape it. To predict lifetime with confidence, we need laboratory measurements, full-scale testing, and validation under real-world operating conditions working together.”

A major focus is accurate state estimation during highly dynamic operation. Using advanced observers, Kalman filtering, and hybrid physics-ML approaches, the team has developed methods that deliver reliable SOC, SOH and SOP estimates during rapid power swings, irregular cycling, and noisy conditions where traditional methods break down.

Another key contribution is understanding cell-to-cell divergence in large strings. Sheffield’s data shows how imbalance accelerates near SOC extremes, how thermal gradients drive uneven ageing, and how current distribution causes long-term drift. These insights inform balancing strategies that improve usable capacity and safety.

Sheffield has also strengthened lifetime and degradation modeling by incorporating real grid behavior directly into the framework. By analyzing actual market signals, frequency deviations, and dispatch patterns, the team uncovers ageing mechanisms that do not appear during controlled laboratory cycling and would otherwise remain hidden.

These contributions fall into four core areas:

State Estimation and Parameter Identification

  • Robust SOC/SOH estimation
  • Online parameter identification for equivalent circuit models
  • Power capability prediction using transient excitation
  • Data selection strategies under noise and variability

Degradation and Lifetime Modelling

  • Degradation models built on real frequency and market data
  • Analysis of micro cycling and asymmetric duty cycles
  • Hybrid physics-ML forecasting models

Thermal and Imbalance Behavior

  • Characterizing thermal gradients in containerized systems
  • Understanding cell imbalance in large-scale systems
  • Mitigation strategies at the cell and module level
  • Coupled thermal-electrical behavior under fast cycling

Hybrid Systems and Multi-Technology Optimization

  • Battery-flywheel coordination strategies
  • Techno-economic modeling for hybrid assets
  • Dispatch optimization using evolutionary algorithms
  • Control schemes that extend lifetime and enhance service performance

Beyond grid-connected systems, Sheffield’s diagnostic methods have also proved valuable in off-grid environments. A key example is the collaboration with MOPO, a company deploying pay-per-swap lithium-ion battery packs in low-income communities across Sub-Saharan Africa. These batteries face deep cycling, variable user behavior, and sustained high temperatures, all without active cooling or controlled environments. The team’s techniques in cell characterization, parameter estimation, and in-situ health tracking have helped extend the usable life of MOPO’s battery packs. β€œBy applying our know-how, we can make these battery-swap packs clean, safe, and significantly more affordable than petrol and diesel generators for the communities that rely on them,” says Professor Gladwin.

Beyond grid-connected systems, Sheffield’s diagnostic methods have also proved valuable in off-grid environments. A key example is the collaboration with MOPO, a company deploying pay-per-swap lithium-ion battery packs in low-income communities across Sub-Saharan Africa. MOPO

Collaboration and the global future

A defining strength of Sheffield’s approach is its close integration with industry, system operators, technology developers, and service providers. Over the past decade, its grid-connected testbed has enabled organizations to trial control algorithms, commission their first battery assets, test market participation strategies, and validate performance under real operational constraints.

These partnerships have produced practical engineering outcomes, including improved dispatch strategies, refined control architectures, validated installation and commissioning methods, and a clearer understanding of degradation under real-world market operation. According to Gladwin, β€œIt is a two-way relationship, we bring the analytical and research tools, industry brings the operational context and scale.”

A man in high-visibility jacket stands by a blue and white shipping container.One of Sheffield’s earliest breakthroughs came with the installation of a 2 MW / 1 MWh lithium titanate demonstrator. Professor Gladwin led the engineering, design, installation, and commissioning of the system, establishing one of UK’s first independent megawatt scale storage platforms.The University of Sheffield

This two-way exchange, combining academic insight with operational experience, ensures that Sheffield’s research remains directly relevant to modern power systems. It continues to shape best practice in lifetime modelling, hybrid system control, diagnostics, and operational optimization.

As electricity systems worldwide move toward net zero, the need for validated models, proven control algorithms, and empirical understanding will only grow. Sheffield’s combination of full-scale infrastructure, long-term datasets, and collaborative research culture ensures it will remain at the forefront of developing storage technologies that perform reliably in the environments that matter most, the real world.

Polar Racking secures first Australian contract with 240MW Maryvale solar-plus-storage site

16 January 2026 at 02:21
Canada-based solar mounting systems provider Polar Racking has entered the Australian market through its involvement in the 240MW Maryvale solar-plus-storage project in New South Wales, marking the company's first project deployment in the country.

Why Compliance to Harmonic Studies Is Now Mandatory for Modern Power Systems

Modern power systems are undergoing fundamental transformation. The rapid growth of inverter-based resourcesβ€”such as battery energy storage systems (BESS), solar PV plants, wind farms, HVDC links, electric vehicle chargers, and power-electronic-dominated industrial loadsβ€”has significantly altered the harmonic behavior of electricity... Read more

The post Why Compliance to Harmonic Studies Is Now Mandatory for Modern Power Systems appeared first on EEP - Electrical Engineering Portal.

The Critical Role of Material Selection in Direct-to-Chip Liquid Cooling

30 December 2025 at 15:00

As data centers evolve to support AI, edge computing, and high-density cloud architectures, the challenge is no longer just maintaining an optimal power usage effectiveness (PUE), it is about achieving thermal reliability with unprecedented compute loads. Direct-to-chip liquid cooling continues to push the envelope on heat transfer performance, but one underestimated element in overall system reliability is the material composition of the fluid conveyance network itself. The hoses and fittings that transport coolant through these systems operate in extreme thermal and chemical environments, and their design directly influences uptime, maintenance intervals, and total cost of ownership.

Why Material Selection Matters

At its core, a liquid cooling system is only as reliable as its weakest component. If hoses, fittings, or seals fail due to poor material compatibility, the result could be leaks, contamination, or shortened system life, leading to downtime and costly remediation. Rubber, and rubber-like, materials are critical in hose assemblies, as they must balance flexibility for installation and serviceability with long-term resistance to temperature, pressure, permeation, coolant and coolant additives.

The challenge lies in the fact that not all rubbers, or rubber-like materials, are created equal. Each formulation is a complex recipe of polymers, plasticizers, fillers, and curing agents designed to deliver specific performance characteristics. The wrong selection can lead to issues such as fluid permeation, premature aging, or contamination of the coolant. In mission-critical environments like data centers, where even minor disruptions are unacceptable, this risk is magnified.

Temperature and Chemical Compatibility

Although data center cooling systems typically operate at temperatures between 45Β°C (113Β°F) and 65Β°C (149Β°F), sometimes reaching 100Β°C (212Β°F), those ranges can stress certain materials. Nitrile rubber, for example, performs well in oil-based environments but ages quickly in water-glycol systems, especially at higher temperatures. This can cause hardening, cracking, or coolant contamination.

By contrast, ethylene propylene diene monomer (EPDM) rubber has excellent resistance to water, glycols, and the additives commonly used in data center coolants, such as corrosion inhibitors and biocides. EPDM maintains its properties across the required operating range, making it a proven choice for direct-to-chip applications.

However, not all EPDM is the same. Developing the right EPDM for the application demands a deep understanding of polymer chemistry, filler interactions, and process control to precisely balance flexibility, heat resistance, and long-term stability.

Additionally, two curing processes, sulfur-cured and peroxide-cured, produce different performance outcomes. Sulfur-cured EPDM, while widely used, introduces zinc ions during the curing process. When exposed to deionized water, these ions can leach into the coolant, causing contamination and potentially degrading system performance. Peroxide-cured EPDM avoids this issue, offering higher temperature resistance, lower permeation rates, and greater chemical stability, making it the superior choice for modern liquid cooling.

Even among peroxide-cured EPDM compounds, long term performance is not uniform. While the cure system defines the crosslink chemistry, other formulation choices, particularly filler selection and dispersion, can influence how the material performs over time.

The use of fillers and additives is common in rubber compounding. These ingredients are often selected to control cost, improve processability, or achieve certain performance characteristics such as flame resistance, strength, or flexibility.

The challenge is that some filler systems perform well during initial qualification but are not optimized for long-term exposures faced in the operating environment. Certain fillers or processing aids can slowly migrate over time, introducing extractables into the coolant or subtly altering elastomer properties. For data center applications, EPDM compounds must therefore be engineered with a focus on long term stability, reinforcing why EPDM should not be treated as a commodity material in critical cooling systems.

Risks of Non-Compatible Materials

Material incompatibility can have several cascading effects:

  • Contamination – Non-compatible materials can leach extractables into the coolant, leading to discoloration, chemical imbalance, and reduced thermal efficiency.
  • Permeation – Some rubbers allow fluid to slowly migrate through the hose walls, causing coolant loss or altering the fluid mixture over time.
  • Premature Failure – Elevated temperatures can accelerate aging, leading to cracking, swelling, or loss of mechanical strength.
  • Leakage – Rubber under compression may deform over time, jeopardizing seal integrity if not properly formulated for resistance to compression set and tear.

In a recent two-week aging test at 80Β°C using a water-glycol coolant, hoses made of nitrile and sulfur-cured EPDM showed visible discoloration of the coolant, indicating leaching and breakdown of the material. Peroxide-cured EPDM, on the other hand, maintained stability, demonstrating its compatibility and reliability in long-term data center applications.

The Gates Approach

Drawing on lessons from mission critical industries that have managed thermal challenges for decades, Gates engineers apply material science rigor to the design of liquid cooling hoses for data center applications.

Rather than relying solely on initial material ratings or short-term qualification criteria, Gates begins by tailoring compound design to the operating environment. This includes deliberate control of polymer selection, filler systems, and cure chemistry to manage long term aging behavior, extractables, permeation, and retention of mechanical properties over time in high purity coolant systems.

Compounds are validated through extended aging and immersion testing that reflects real operating conditions, including exposure to heat, deionized water, and water-glycol coolants. This allows potential material changes to be identified and addressed during development, before installation in the field.

This material science driven process is applied across Gates liquid cooling platforms, including the Data Master, Data Master MegaFlex, and newly released Data Master Eco product lines. By engineering for long term stability rather than only initial compliance, Gates designs hose solutions intended to support reliable operation, predictable maintenance intervals, and extended service life in direct-to-chip liquid cooled data center environments.

Looking Ahead

As data centers continue to scale, thermal management solutions must adapt in parallel. Advanced architectures, higher rack densities, and growing environmental regulations all point to a future where liquid cooling is standard. In this environment, material selection is no longer a secondary consideration; it is foundational to system reliability.

Operators who prioritize material compatibility in fluid conveyance lines will benefit from longer service intervals, improved coolant stability, and reduced risk of downtime. In other words, the proper rubber formulation doesn’t just move fluid, it moves the industry forward.

At Gates, sustainable, high-performance cooling begins with the details. By focusing on the science of materials, we help ensure that data center operators can confidently deploy liquid cooling systems designed for the challenges of today and the innovations of tomorrow.

# # #

About the Author

Chad Chapman is a Mechanical Engineer with over 20 years of experience in the fluid power industry. He currently serves as a Product Application Engineering Manager at Gates, where he leads a team that provides technical guidance, recommendations, and innovative solutions to customers utilizing Gates products and services.

Driven by a passion for problem-solving, Chad thrives on collaborating with customers to understand their unique challenges and deliver solutions that optimize performance. He is energized by learning about new applications and technologies, especially where insights can be shared across industries. At Gates, he has been exploring the emerging field of direct-to-chip liquid cooling, an exciting extension of his deep expertise in thermal management. The rapid advancements in IT technology and AI have made his journey an inspiring and rewarding learning experience.

The post The Critical Role of Material Selection in Direct-to-Chip Liquid Cooling appeared first on Data Center POST.

4PAY Taps Opti9 to Modernize Canada’s Digital Finance Infrastructure and Support Cloud Transformation

4 December 2025 at 17:00

4PAY is taking PaiyHub, its collaborative finance platform, to the next level with a new partnership with Opti9. The goal is to modernize PaiyHub’s AWS environment to make it faster, more reliable, and ready to scale across banks, telecom providers, government agencies, and fintech organizations.

PaiyHub makes it possible for institutions that normally operate on separate systems to securely exchange value. In an increasingly digital financial ecosystem, organizations are demanding faster, real-time payment capabilities, as well as smoother collaboration between banks, telecom providers, and other financial service partners. PaiyHub addresses this need by providing a unified platform that allows multiple parties to process transactions, share information, and manage payments securely and efficiently.

Earl Robinson, VP of Global Channel Sales at 4PAY, says the company’s long-term vision is to create a shared framework connecting a wide range of financial and communications providers. To make that happen, PaiyHub needs infrastructure that supports quick onboarding, smooth interoperability, and high availability, especially as it expands into new markets. By investing in cloud modernization, 4PAY is ensuring that the platform can grow with increasing transaction volumes and evolving integration requirements.

Opti9 is bringing its cloud expertise to the table, redesigning key parts of PaiyHub’s architecture using AWS-native tools and modernization practices commonly seen in regulated industries. This includes making systems more reliable, streamlining compliance processes, and speeding up the rollout of new features. Modernizing the infrastructure also helps 4PAY reduce operational complexity, allowing teams to focus on developing new capabilities and improving user experience rather than managing outdated systems.

Drew Jenkins, Cloud Alliances Director at Opti9, adds that the partnership is all about giving 4PAY a secure, scalable foundation for growth. With experience building cloud environments for financial institutions and other compliance-heavy sectors, Opti9 is well-equipped to support a platform that handles sensitive payment and identity data. This expertise is critical for companies like 4PAY that operate in highly regulated environments, where data security and system reliability are top priorities.

The initiative also reflects a bigger trend in Canada’s financial sector: modernizing legacy systems as digital payments and multi-party financial services become increasingly interconnected. By upgrading PaiyHub’s infrastructure, 4PAY is positioning itself to meet growing demand for programmable financial services, support more complex transaction models, and integrate with an expanding network of partners, all while maintaining the regulatory controls that institutions expect.

Ultimately, this cloud modernization effort is about more than just technology, it’s about enabling innovation and growth in the financial ecosystem. For 4PAY, it means building a platform that can scale globally, onboard partners quickly, and deliver reliable, secure services in a fast-changing industry. For organizations that rely on PaiyHub, it translates to faster transactions, smoother integrations, and a foundation for future digital payment capabilities.

To learn more about Opti9’s cloud modernization capabilities, visit opt9tech.com.

The post 4PAY Taps Opti9 to Modernize Canada’s Digital Finance Infrastructure and Support Cloud Transformation appeared first on Data Center POST.

TCIL issue Tender for Selection of Partner for Procurement of Grid Tie Roof-Mounted Hybrid Solar PV Systems for a Cumulative 2 MWp in the Island of Rodrigues, Republic of Mauritius – EQ

Summary:

β€”

### **1. PROJECT OVERVIEW**
– **Title:** Selection of Partner for Procurement of Grid Tie Roof-Mounted Hybrid Solar Photovoltaic Systems (Cumulative 2 MWp) in Rodrigues, Republic of Mauritius.
– **Client’s Tender Reference:** CEB/IFB/2025/10478.
– **Issuing Entity:** TCIL (a Government of India Enterprise under the Department of Telecommunications).
– **Objective:** To select a backend partner to work exclusively with TCIL as the prime bidder for the client’s solar PV tender.

β€”

### **2. KEY DATES & SUBMISSION DETAILS**
– **EOI Posting Date:** 22/01/2026
– **Last Date for Clarifications:** 29/01/2026, 17:00 Hrs
– **Bid Submission Start:** 05/02/2026, 12:00 Hrs
– **Bid Submission Deadline:** 05/02/2026, 17:00 Hrs
– **Technical Bid Opening:** 05/02/2026, 17:30 Hrs
– **Financial Bid Opening:** To be notified later

**Submission Modes:**
1. **Offline:** CEO, TCIL Mauritius, 10 Darwin Avenue, Quatre Bornes, Mauritius.
2. **Online via Email:** `cointenders@intnet.mu` & `tcil@intnet.mu` (Commercial bid must be password-protected, max file size 5MB).

β€”

### **3. ELIGIBILITY CRITERIA**

#### **a) Local Sourcing & Make in India**
– Only **Class-I and Class-II local suppliers** (as per DPIIT Order) eligible unless global tender.
– Mandatory **Make in India Undertaking** required with local content calculation.

#### **b) Entity Registration**
– Must submit Certificate of Incorporation/Registration/Partnership Deed and address proof.

#### **c) Financial Criteria (Last 3 Years)**
– **Average Annual Turnover:** β‰₯ MUR 37.62 million (MUR 31.35 million for MSEs & Startups).
– **Net Worth:** Positive.
– **Profit Before Tax (PBT):** In at least 2 out of 3 years.

#### **d) Technical & Project Experience (Last 7 Years)**
– **Option A:** Three similar works each β‰₯ MUR 50.16 million (MUR 43.89 million for MSEs).
– **Option B:** Two similar works each β‰₯ MUR 62.7 million (MUR 56.43 million for MSEs).
– **Option C:** One similar work β‰₯ MUR 87.78 million (MUR 81.51 million for MSEs).

**Additional Experience Requirements:**
– Minimum 2 years’ experience in design, installation, testing & commissioning of β‰₯200 Grid-Tie Roof-Mounted Solar PV Systems (cumulative 1 MWp).
– At least 20 Grid-Tie/Off-Grid Roof-Mounted Solar Hybrid PV-BESS systems in past 2 years.
– **OEM Capability Requirements:**
– 5+ years manufacturing experience.
– Annual production capacity β‰₯100 MWp (PV panels, hybrid inverters) and β‰₯100 MWh (BESS).
– ISO 9001 & ISO 14001 certifications.
– Annual production & sale of β‰₯5000 mounting structures (last 5 years).
– Wind resistance certification for mounting structures in cyclonic conditions.

#### **e) Tax & Regulatory Compliance**
– Valid TAN/PAN and GST/VAT registration (or undertaking to obtain).

#### **f) Manufacturer’s Authorization Certificate (MAF)**
– Required from OEMs in the name of TCIL. Undertaking acceptable if not available at EOI stage.

#### **g) No Blacklisting**
– Must submit a **No-Conviction Certificate**.

#### **h) Other Undertakings Required**
– Solvency, non-cancellation of past TCIL orders (last 2 years), compliance with Mauritius labour laws, skilled workforce commitment (RPL certification within 2 months), clause-by-clause compliance statement, and genuineness of documents.

#### **i) Consortium Bidding (Allowed, max 3 partners)**
– Lead partner must meet experience criteria and β‰₯25% of turnover requirement.
– Consortium agreement required, specifying joint & several liability.
– Changes in consortium post-submission not permitted.

β€”

### **4. BID SECURITY (EMD)**
– **Amount:** MUR 285,000 **OR** INR 500,000.
– **Validity:** 180 days from bid submission deadline.
– **Forms Accepted:** Bank Guarantee (from reputed Indian/Mauritian bank), Banker’s Cheque, or Bank Transfer.
– **Exemption:** MSEs and Startups (with valid certificates) are exempted.

β€”

For more information please see below link:

❌