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High-Power Testing for Energy Storage Systems
Accelerate testing with dynamic battery charge levels and grid events without relying on live battery packs.
Power Testing That Reliably Replicates Dynamic Battery Behavior
Validating grid-connected Battery Energy Storage Systems (BESS) isn’t just charging and discharging. It means emulating load conditions, capturing grid events, and proving inverters and controls over long durations. Traditional test systems fall short, forcing compromises in speed, safety, and scalability—while missing risks that surface only under real conditions.
Accelerate Testing Across Real-World Grid Conditions
Our latest regenerative power supplies and battery emulation software let you test how inverters and control systems respond to dynamic load profiles, state-of-charge (SoC) shifts, and grid events — all without relying on live battery packs.
The result? Faster validation cycles, lower operating costs, and greater confidence in system performance at scale.
Use Case 1: Battery Emulation in Energy Storage
Maximize Energy Storage Performance and Safety Through Battery Emulation
Manually cycling test batteries slows you down and limits what you can simulate. Use our regenerative power supplies with emulation software to automate SoC profiles, simulate faults, and validate controller response without battery handling or lab resets.
Start with 4 to 6 kW units for subsystem testing, or scale to 12 kW+ for full-stack validation. You’ll get repeatable results, faster changeovers, and energy recovery on every run.
Use Case 2: Battery Cycling in Energy Storage
Determine Long-Term Energy Storage Performance and Safety Through Battery Cycling
Running long-term charge/discharge cycles with real batteries is slow, expensive, and hard to scale. Our regenerative power supplies let you automate extended cycling routines, monitor degradation behavior, and feed recovered energy back to the grid without constant pack swapping or thermal overhead.
Start with 6 kW or 12 kW units for individual packs, or scale up to 192 kW for full-system cycling across multiple channels. You’ll increase throughput, reduce floor space, and cut energy costs on every long-duration test.
Webinar: Avoiding Pitfalls in High-Power Test
Discover the five most common mistakes in high-power validation and proven strategies to avoid them.
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"We were spending full days just charging and discharging packs before we could even start the real test. Battery emulation cut that cycle time to minutes — now we can validate multiple scenarios in a single shift.”
SENIOR TEST ENGINEER, UTILITY STORAGE LAB
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"We were seeing 30% of our test budget go into battery logistics. Emulation eliminates that — no more buying, swapping, or babysitting test batteries."
VALIDATION MANAGER, GRID-SCALE INVERTER SUPPLIER
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"We recover most of the energy during discharge. That’s a massive deal when you’re running multi-kilowatt cycles continuously for weeks.”
R&D MANAGER, LONG-DURATION STORAGE STARTUP
Quick Model Selection Guide
Not Sure Where to Start?
Quickly match your application with the right solution — whether you're building a high-power validation rack or working within space constraints in a shared lab environment.
| Use Case | Recommended Models | Why |
| Battery cycling for durability testing | EL4900 Series Electronic Loads: 2 kW to 6 kW models |
Regenerative electronic load enables long-duration discharge testing with energy recovery |
| Emulating BESS in inverter validation | RP5900 Series Power Supplies: 4 kW to 12 kW models |
Regenerative source simulates dynamic battery behavior across SOC ranges |
| Grid-connected BESS behavior simulation | RP5900 Series Power Supplies: paralleled units up to 192 kW |
Supports up to 800 V / 240 A per unit; scalable to full system loads |
| Reducing test energy and cooling load | RP5900 Series Power Supplies and EL4900 Series Electronic Loads |
Regenerative operation returns energy to the grid, lowers lab power and cooling costs |
| Lab or rack space is limited | DP5700 Series Power Supplies: 1.5 kW models |
Compact form factor for tight benches or data center racks |
| Basic DC power sourcing (non-regenerative) | DP5700 Series Power Supplies: 1.5 kW, 3.4 kW, or 5 kW models |
High-current, programmable DC supply without regeneration — ideal for simpler setups |
Explore Products
Keysight’s new high-power ATE system supplies deliver sub-millisecond accuracy, regenerative efficiency, and seamless automation.
DP5700 Series High-Density Power Supplies
- 1.5 kW, 3.4 kW, 5 kW
- Max voltage: 600 V
- Max current: 500 A
- Available in half-rack width and 1U sizes
- Removable SD memory ensures data remains classified
RP5900 Series Regenerative Power Supplies
- 2 kW, 4 kW, 6 kW, 12 kW
- Max voltage: 800 V
- Max current: 240 A
- Available in 1U and 2U sizes
- Bidirectional power sourcing with up to 95% of energy returned to the grid
EL4900 Series Regenerative Electronic Loads
- 2 kW, 4 kW, 6 kW, 12 kW
- Max voltage: 800 V
- Max current: 240 A
- Available in 1U and 2U sizes
- Bidirectional power sinking with up to 95% of energy returned to the grid
Power Without Compromise
Validate multi-kilowatt devices faster in less space — without sacrificing performance or programmability.
Looking to shrink validation cycles?