Energy storage that pays back the meter, not the marketing brochure.
Peak shaving, demand charge reduction, and backup power for factories, commercial buildings, and industrial parks. Sized from 100 kW to 5 MW, with measurable savings against your actual utility bill.
Four reasons C&I storage projects fail to deliver the savings promised at sale.
The peak-shaving math at proposal time always works. The implementation often doesn’t. These are the four reasons we see most often when reviewing under-performing installations.
Three sized configurations that scale from 100 kW to 5 MW.
Pick the tier that matches your site’s peak load, daily energy needs, and backup requirements. We size to your interval meter data and tariff structure.
Single factory floor, mid-size commercial building, small office complex
- PCS: 1-4 × EPCS105/125-AM modules
- Battery: 200-1000 kWh LFP racks
- STS (optional): ESTS250-M for critical-load backup
- Footprint: Indoor switchroom or outdoor cabinet
- Commissioning: 8-12 weeks contract → operational
Multi-building commercial site, mid-size factory, mixed-use industrial park
- PCS: 1-4 × 500 kW PCS Cabinet (each = 4 × EPCS125-AM)
- Battery: 1-4 MWh LFP container or rack arrays
- STS: ESTS500/1000-M for industrial backup
- EMS: Multi-revenue stream optimization built in
- Commissioning: 14-20 weeks (includes utility approval)
Industrial parks, automotive plants, steel mills, large hospitals
- PCS: 1500 Vdc PCS Series (EPCS215-AM-HX etc.)
- Battery: Container-scale LFP (2.5 MW/20ft, 5 MW/40ft)
- EMS: SCADA-integrated for utility coordination
- Services: Demand response, capacity markets eligible
- Commissioning: 6-9 months including utility paperwork
A 1 MW / 2 MWh installation, broken down by revenue stream.
Combined revenue streams from one BESS installation. Most projects activate 2-3 of these; activating all 4 maximizes ROI.
Questions our application engineers get most often.
From procurement shortlists to commissioning — the ten questions we hear most often during technical due diligence.
We need 12 months of interval meter data (15-minute or 30-minute intervals) and your current utility tariff schedule. With those, we model peak shaving savings, ToU arbitrage potential, and demand charge avoidance — typical turnaround is 48-72 hours.
If you don’t have interval data, we work with monthly bills but the model has wider uncertainty bands. For larger projects (> 500 kW) we recommend installing an interval meter first.
Tier A (under 500 kW): 8-12 weeks from contract to grid-tied commissioning. Tier B (500 kW-2 MW): 14-20 weeks. Tier C (2 MW+): 6-9 months. The longest single phase is usually utility interconnection paperwork.
Almost always yes for behind-the-meter installations under 2 MW. We’ve completed projects across China (CQC), Europe (CE + national codes), Americas (UL 1741, IEEE 1547), and APAC (AS/NZS 4777.2). Grid code compliance documentation included with quote.
LFP is the C&I default — best cycle life, safest thermal profile, lowest TCO over 10-15 year project life. NMC for high-density installations. Sodium-ion validated since 2024 for cost-sensitive tropical-climate projects.
Yes — most common C&I configuration. PCS handles both functions through firmware modes. Normal operation runs peak shaving / ToU arbitrage; on grid loss, switches to off-grid mode within 20 ms supplying designated critical-load circuits.
The battery’s SoC reserve for backup is configurable per site (typically 20-30% kept for emergency backup, 70-80% available for daily arbitrage).
Typical LFP batteries used in C&I retain 70-80% of original capacity after 6,000-8,000 cycles (10-15 years at typical commercial duty). At end of project life, batteries can be replaced with new cells in existing rack hardware, or repurposed for second-life applications.