Maximizing deman response returns with BESS through smarter design

2026/08

Text by DET

As Singapore accelerates its energy transition, battery energy storage systems (BESS) are evolving beyond backup power to become strategic assets that support grid stability while creating new revenue opportunities.

Delta recently demonstrated this potential through a successful pilot deployment that enables an office building to participate in Singapore's Demand Response (DR) program, showcasing how thoughtful system design can maximize both operational performance and return on investment.


The Singapore project highlights Delta's seamless software-hardware integration and the commercial power of BESS


The DR program allows electricity consumers to support grid reliability during periods of peak demand by temporarily reducing their electricity consumption. Traditionally, this has been achieved by curtailing operations, optimizing Recognizing cooling systems, or relying on diesel generators. However, advances in battery technology and declining battery costs are making BESS an increasingly attractive alternative.

Recognizing this shift, Delta worked with a customer in Singapore to deploy a 200 kW/ 315 kWh BESS designed specifically for DR participation. The system enables the building to respond rapidly to DR activation signals, reducing reliance on the grid during peak demand while generating additional revenue through the program.

At the heart of the solution is Delta's skid-based BESS architecture, which integrates two PCS 100HV units, a junction cabinet and a 315 kWh battery cabinet onto a single pre-engineered platform. By consolidating AC and DC cabling, communications and control wiring, the design simplifies installation, reduces on-site engineering work and shortens deployment time compared to conventional containerized systems.


Delta's 200 kW/315 kWh BESS in Singapore delivers both operational resilience and tangible returns through smart planning.


A key aspect of the project was the close integration between Delta's BESS and the aggregator's IoT control platform. By working together on firmware integration, Delta ensured the system could receive dispatch instructions and respond accurately during each DR event, demonstrating the flexibility needed to support Singapore's evolving energy market.

Beyond technical performance, the project highlights the growing importance of designing energy storage systems for multiple value streams. Rather than serving a single purpose, modern BESS installations can support demand response, energy arbitrage and backup power at different times of the day, allowing asset owners to maximize utilization and improve project economics.

This flexibility has become increasingly important as falling battery prices improve the commercial viability of energy storage. Where BESS was once considered too costly for ancillary service applications, it is now emerging as a practical investment that can deliver both operational resilience and attractive financial returns.

The successful pilot demonstrates how combining intelligent system design with flexible software integration can help customers unlock greater value from energy storage. As Singapore continues expanding energy storage adoption and strengthening market mechanisms such as Demand Response, projects like this provide a practical blueprint for organizations looking to enhance grid resilience while improving the financial performance of their energy assets.

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