Site acceptance testing

Validate BESS Performance Before COD With Independent Insights

Get your BESS ready for commercial operation with a Digital Commissioning Report that enhances Site Acceptance Testing with independent performance insights, including SoH, capacity, and RTE. Catch early issues missed by on-site tests and act before they affect ROI.

De-risk BESS deployment for the perfect start into storage life

Energy Storage Integrators & Owners Trust TWAICE

“TWAICE’s Digital Commissioning helps us to overcome the challenges resulting from an increasing heterogeneous system-integrator landscape and ever larger BESS systems. A must have for baselining performance at beginning of life and identifying deficiencies before operation starts.” 

Head of Battery Solutions Center at VERBUND
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Verify supplier performance

Validate supplier claims with independent third-party data. Our Digital Commissioning Report delivers key SAT indicators — including SoH, capacity, and round-trip efficiency — to confirm that your BESS meets contractual specifications before commercial operations.

Identify issues early during Site Acceptance Testing

Detect hidden performance anomalies — such as cell imbalances or early degradation — that on-site tests often miss. Our diagnostic insights pinpoint exact fault locations, enabling field teams to act faster and avoid costly post-handover issues.

Create a standardized baseline across your BESS portfolio

Standardize performance data across your BESS portfolio — regardless of supplier or software platform. Our consistent methodology enables like-for-like benchmarking, empowering data-driven decisions across sites, technologies, and vendors.

PRODUCT tour

See TWAICE In Action

Manage your BESS portfolio on a dashboard, ensure safe operations by identifying and fixing safety-relevant trends in advance, and improve system performance and availability to maximize revenue.