European EPCs & System Integrators
You design, build and hand over BESS projects — then carry the commissioning risk and the defects-liability period on your books. BessRe is your on-the-ground commissioning, handover and after-sales partner, so every project you deliver works on day one and stays working through the warranty period.
The problems you face
Winning the project is hard enough — commissioning and defects liability are where margins get burned.
Commissioning delays burn margin
Grid-connection hold-ups, certification gaps and integration faults delay handover — and every week of delay eats the project margin and triggers penalty clauses.
Defects-liability exposure
Once handed over, you still carry the defects-liability period. Without a local response team, every callback means mobilising your own engineers — at your cost, on your schedule.
Multi-vendor integration risk
You integrate batteries, inverters, EMS and BMS from different vendors — and take responsibility when they don’t play well together. Independent commissioning and troubleshooting is the difference between on-time handover and a blamed EPC.
Your core needs
What an EPC needs to deliver on time, on budget and off the hook.
- On-site commissioning and integration support across vendors
- Grid-connection and certification hand-holding to avoid delays
- Defects-liability response that doesn’t pull your engineers off new projects
- Local spare parts and ADR-compliant battery logistics
- Documented handover and as-built records for your client
- Post-handover O&M you can offer as a value-add to clients
- End-of-life and recycling for the projects you replace or repower
What BessRe provides
A local field partner that makes your projects land cleanly.
Commissioning & integration
Certified local engineers commission and integrate batteries, inverters, EMS and BMS from any vendor — getting systems to grid connection and handover on schedule.
Defects-liability response
During the defects-liability period, our local teams handle callbacks, warranty repairs and RMA — so your own engineers stay on new projects instead of chasing old ones.
Handover & as-built documentation
We produce documented handover and as-built records your client, lender and insurer accept — turning a clean handover into a competitive edge.
Post-handover O&M white-label
Offer your clients ongoing O&M under your brand — we execute it. A value-add that keeps you engaged post-handover and opens recurring revenue.
How we work together
From pre-commissioning to defects-liability close-out.
Pre-commissioning
Integration planning, certification checklist and grid-connection readiness.
Commissioning
On-site commissioning and integration across all vendors, to handover readiness.
Handover
Documented handover and as-built records for your client, lender and insurer.
Defects liability
Local callback, warranty repair and RMA response through the liability period.
White-label O&M
Offer post-handover O&M under your brand, executed by our local teams.
Lifecycle & repowering
End-of-life and recycling for projects you replace or repower.
Customer cases
Based on real project characteristics; customer details are anonymised.
On-time handover for a multi-vendor C&I project
Background: A European EPC was integrating batteries, inverters and EMS from three vendors on a Dutch C&I project, with grid connection slipping and penalty clocks running.
BessRe engagement: Our local engineers took over integration troubleshooting and certification, resolving the vendor interop issues and completing commissioning ahead of the revised deadline.
Result: Handover completed on time; the EPC avoided penalties and added BessRe as its commissioning partner for the next three projects.
White-label O&M as a recurring revenue line
Background: An EPC wanted to offer post-handover O&M to its clients but had no local field capacity and no appetite to build one.
BessRe engagement: We white-labelled O&M under the EPC’s brand — monitoring, field response and reporting executed by our team, presented as the EPC’s own service.
Result: The EPC launched a recurring O&M revenue line within one quarter, retained client relationships post-handover and won two follow-on projects on the strength of the offering.
Commissioning risk comparison
Delay and cost risk: self-mobilised vs BessRe local commissioning.
* Illustrative delay-and-cost risk per commissioning cycle; self-mobilised baseline indexed at 100%.
FAQ
Can BessRe commission systems from any vendor?
Yes. We work vendor-agnostic across batteries, inverters, EMS and BMS, so you get one accountable commissioning partner regardless of the mix in your project.
Do you handle grid-connection and certification?
Yes. We complete the certification and grid-connection checklist item by item, so you don’t stall at the grid stage over a documentation gap.
How do you manage the defects-liability period?
Our local teams handle callbacks, warranty repairs and RMA through the liability period, so your engineers stay on new projects and your margin isn’t burned on old ones.
Can you deliver under my brand?
Yes. Whether commissioning or white-label O&M, we deliver under your brand — your client sees you, we execute behind the scenes.
What documentation do you provide at handover?
Documented handover and as-built records that your client, lender and insurer accept — structured, timestamped and auditable.
How does white-label O&M work commercially?
You contract O&M to your client under your brand; we execute monitoring, field response and reporting behind the scenes. You keep the client relationship and the recurring revenue.
Do you provide local spare parts and ADR logistics?
Yes. Belgian local spare parts and ADR-compliant battery logistics mean faster resolution and full compliance during commissioning and defects liability.
Can you support multiple projects in parallel?
Yes. We scale field teams across the Benelux and Western Europe, supporting multiple commissioning and defects-liability projects in parallel.
Do you handle end-of-life and repowering?
Yes. For projects you replace or repower, we handle decommissioning, ADR-compliant transport and recycling, keeping you compliant to the end.
How quickly can you mobilise on a new project?
For commissioning, we typically mobilise within 2–4 weeks of contract, with pre-commissioning planning starting immediately on signature.
Make your projects land cleanly
Contact us for commissioning, defects-liability and white-label O&M support.
Contact us
Repair or Replace? The 2026 EU Compliance & Local Delivery Guide
Repair economics, the compliance map, and local delivery capability — for Chinese BESS manufacturers entering Europe.
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