No publishing. We're working on important changes.
We look at Asana Website updates publishing calendar. Keep it updated.
Product Update
Tracking and Enforcing BESS Performance Contracts Just Got Easier
April 16, 2025
BESS performance guarantees and warranties are packed with critical metrics, from availability, round-trip efficiency (RTE), equivalent full cycles (EFC), State of Health (SoH) to operating conditions like temperature. However, tracking these metrics properly and mapping them to the terms of the contract is a challenge. In this article, we describe how you can use our updated Warranty and Guarantee Tracker.
TWAICE helped me to learn more about:
read article here:
www.twaice.com/article/
#thinktwaice
As battery energy storage systems (BESS) become increasingly central to grid resilience and renewable integration, asset managers and operations leaders face a growing challenge: ensuring that every system performs both contractually as well as technically.
Whether it's a long-term warranty from an OEM, a performance guarantee from an integrator, or service level obligations under an LTSA, these contracts define the financial backbone of energy storage projects. To uphold these agreements, tracking and proving performance is essential – especially when thresholds are missed or disputes arise.
The Challenge: Performance Risk Is Everywhere – But Hard To Pin Down
BESS performance guarantees and warranties are packed with critical metrics, from availability, round-trip efficiency (RTE), equivalent full cycles (EFC), State of Health (SoH) to operating conditions like temperature. However, tracking these metrics properly and mapping them to the terms of the contract is a challenge.
Data is scattered across different systems and tools, making it challenging to gather the right information to track everything centrally.
Contracts vary depending on the supplier or integrator – both in terms of definition and variability, meaning there is no one-size-fits all approach.
Even if you are tracking contract conditions for one system from one integrator, this may not be applicable for all systems.
Responsibility can be unclear when performance drops. Is it the battery OEM, integrator, O&M provider or because of aggressive operation?
The Solution: Introducing Our Warranty and Guarantee Tracker
To help solve your challenges, we have revamped our Warranty and Guarantee Tracker to help you track and enforce contract performance metrics.
Monitor the Metrics That Matter
You can track 15 different KPIs, including SoH, Availability, Round-Trip Efficiency, Cumulative or daily EFC, and C-rate, and more. With flexible configuration options, you can choose which KPIs you want to view on your dashboard, their aggregation (min, mean, or max) as well as their operational status (charging, discharging, operation or resting). Overall, there are 50 different configuration options, meaning you can be sure to map all relevant warranty contract data here.
Figure 1: Configure KPI graphs in the Warranty Tracker
Identify Warranty Breaches Automatically
The Warranty and Guarantee tracker shows you exactly where breaches have occurred and using TWAICE Energy Analytics, you can find the root cause of any warranty breaches. (Of course, your Customer Success Manager can also help here!)
Figure 2:Â Check for warranty breaches
Access an Audit Trail
Provide data to your integrator or supplier for documentation, reporting and dispute resolution. For example, the Warranty and Guarantee Tracker provides an overview of all contract breaches for a particular KPI, and when they occurred. TWAICE customers have also provided screenshots of TWAICE Energy Analytics to suppliers to document warranty breaches.
Benefit From an Independent 3rd Party for Objective Tracking
Using TWAICE Energy Analytics for warranty and performance guarantee tracking has the additional benefit that we are an independent, objective 3rd party you can trust.
See the TWAICE Warranty Tracker in Action
Watch this 3 minute video to learn how BESS asset managers can benefit from the Warranty Tracker:
‍
Watch this 7-minute video to learn how performance or operations engineers can benefit from the Warranty Tracker:
‍
Stay on Top of Performance Contracts
These updates to the Warranty and Guarantee tracker make it easy for you to:
Track most relevant performance KPIs
Identify warranty breaches
Substantiate your warranty claims with data
With our updated Warranty and Guarantee Tracker, staying on top of your BESS performance obligations has never been easier.
Sign up for the next live group demo and learn how TWAICE can transform your BESS operations. In just 30 minutes, you’ll get a demo of key features and use cases, and engage with our product experts for a live Q&A.
As an owner and operator, you can only get the most out of BESS, when you truly understand what’s happening inside the system. In our latest product webinar, the team shared a host of updates and new tools designed to cut through data overload and boost BESS performance.
TWAICE Energy Storage Analytics is a data analytics software for BESS operations, helping asset managers and performance engineers improve the lifetime, health and safety of their assets. Its features and data visualizations make it easy to pinpoint issues and detect operational risks, but to truly get to the bottom of what is happening, performance engineers must be able to easily access and analyze time-series data. That’s why we built Data Explorer.
State of Charge (SoC) errors are one of the biggest headaches in managing and operating battery energy storage systems, and they cost operators millions in lost revenue. TWAICE’s new feature, Penalty Risk Assessment, provides accurate SoC insights to help you avoid these costly outcomes.
Join our next product webinar and discover the latest features designed to support BESS owners and operators improve performance, ensure warranty compliance, and maximize revenue. Engage in a live Q&A with TWAICE product managers, and get insights into what’s coming up next.
If you’re in the energy storage game, you probably already know that a few key days can make or break your revenue for the year. But are you fully prepared to take advantage of them? That was the hot topic in our latest webinar with Energy Storage News.
If you’re curious about where the battery energy storage (BESS) industry is heading, the latest episode of the Hypercube Podcast is one you won’t want to miss. Adam Sroka, CEO at Hypercube and Stephan Rohr, CEO at TWAICE, sat down to talk about the two sides of energy storage: making money and making sure your assets work the way they should.