Energy. Store.
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Battery storage systems are particularly suitable for industrial and campus sites, energy supply companies, and operators of larger infrastructures with a grid connection of at least 1 MW at grid level 5 and annual energy consumption above 1 GWh. Typical applications include self-consumption optimization, where PV surplus is stored and time-shifted for later use, and peak shaving, which can reduce demand charges by 20 to 50 percent. Additional use cases include grid relief, security of supply with millisecond response times, and marketing flexibility through ancillary services (SDL) for Swissgrid. Based on project data from five NRG Solutions BESS installations in Switzerland with a combined capacity exceeding 30 MWh, combining multiple use cases significantly improves the business case. For example, the SABAG Rothenburg project with 3.45 MW and 5 MWh is designed for both peak shaving and SDL market participation on the Swissgrid market.

A BESS is economically viable when load profiles, grid connection conditions, tariffs, and operating strategy are carefully coordinated. The decisive factor is not just battery size, but the combination of technical design, intelligent energy management through a capable EMS, and integration with relevant markets such as the Swissgrid SDL market. NRG Solutions evaluates every project rigorously using DCF analysis, sensitivity analyses, NPV, and IRR rather than generic ROI promises. Typical economically attractive sites feature a grid connection of at least 1 MW at grid level 5 (medium voltage), annual energy consumption above 1 GWh, and pronounced load peaks in the demand profile. Modern lithium-ion batteries achieve over 6,000 cycles and a lifespan exceeding 15 years, which further strengthens long-term viability. The complete evaluation process from load profile analysis to finished financial modeling typically takes just a few weeks and is non-binding for the customer.

The energy management system is the core of every BESS, controlling the battery storage in real time using intelligent algorithms. It optimizes energy flows at the site by deciding when to store, discharge, or market energy based on load forecasts, current tariffs, and market prices. The NRG Solutions EMS enables simultaneous use of multiple use cases such as peak shaving, self-consumption optimization, and ancillary services (SDL) for Swissgrid. Unlike static control systems, the EMS adapts dynamically to changing conditions and maximizes total revenue across the entire battery lifespan of over 15 years and 6,000 cycles. Through the NRG Solutions own balance group, SDL revenues are marketed directly on the Swissgrid market. The system also provides transparent reporting and 24/7 monitoring, ensuring performance is traceable at all times. Response time is in the millisecond range, which is particularly critical for primary control reserve and frequency regulation applications.

Yes, modern battery storage systems can serve multiple use cases in parallel, and this is precisely where a key economic advantage over single-application systems lies. This requires clean prioritization of applications and a powerful energy management system (EMS) that accounts for technical, economic, and regulatory conditions in real time. For example, a BESS can perform peak shaving during the day, reducing demand charges by 20 to 50 percent, while simultaneously providing balancing energy on the Swissgrid SDL markets and generating attractive additional revenue. During low-load periods, the storage can be used for self-consumption optimization or energy arbitrage. Based on experience from five BESS projects across Switzerland, the NRG Solutions proprietary EMS manages this prioritization fully automatically through its own balance group, ensuring the battery with its 6,000-plus cycles and 15-year lifespan is utilized optimally and revenues are maximized across all streams.

A BESS project with NRG Solutions follows a structured seven-step process, typically taking 4 to 6 months from initial analysis to commissioning. First, we analyze your load profile based on 15-minute interval data, your tariff structure, and technical constraints. This is followed by joint prioritization of the relevant use cases and technical pre-sizing of power (kW) and capacity (kWh), tailored to your individual site requirements. NRG Solutions then creates a detailed economic model with DCF analysis, sensitivity analyses, NPV, and IRR. The engineering phase covers detailed system design, grid coordination with the distribution network operator, and obtaining all required permits and certifications. We then coordinate the delivery of BESS hardware, civil works, electrical installation, and commissioning. Ongoing operations run through our proprietary energy management system with 24/7 monitoring, automated SDL market participation through our own balance group, and transparent reporting for full performance visibility.

NRG Solutions pursues a fully integrated approach that fundamentally differs from other providers in the Swiss market. From initial load profile analysis and BESS hardware through financing to ongoing operations and active market participation, we take responsibility for the entire system from a single source. Central to our differentiation are our proprietary energy management system (EMS) and our own balance group, which enable direct SDL participation on the Swissgrid market without intermediaries. This eliminates complex interfaces between multiple service providers, reducing risk and significantly increasing predictability. Based on operational data from five BESS projects across Switzerland with a combined capacity exceeding 30 MWh, we continuously optimize our operating strategies. NRG Solutions also offers flexible financing models, including full-service without any customer capital investment, and evaluates every project transparently with NPV and IRR rather than generic ROI promises.