This article was generated with AI assistance from cited sources and has not been individually reviewed by an editor.
China built its commercial and industrial storage market faster than anyone, and it learned one lesson the expensive way: a storage system without an operations and maintenance contract is a warranty without teeth. The mechanism is simple. A battery warranty promises performance and availability, but performance and availability are produced by operation — by how the asset is dispatched, cooled, balanced and repaired. If no one is contractually responsible for that operation, then when the asset underperforms, the manufacturer blames the operator, the operator blames the manufacturer, and the owner holds a warranty that cannot be triggered because fault cannot be assigned.
China’s answer was to make O&M a first-class commercial product. The market’s scale drove it: with user-side storage in the hundreds of gigawatt-hours and growing at a pace that routinely adds more than 3 GW in a single month, a bare equipment sale without a service obligation simply did not survive contact with year two. AI-driven O&M became a selling point in its own right — vendors competing on who could reduce labour dependency and improve uptime with software, not just on who could ship the cheapest cabinet. The lesson is transportable: it is not about China, it is about what happens when an installed base becomes large enough that after-sales stops being an afterthought.
Europe is entering the same phase, a few years behind. The C&I segment — commercial and industrial systems behind the meter — is growing, but the O&M product is still immature and inconsistently attached. Many European C&I systems are sold as equipment with a warranty and a promise, not as equipment with a contracted service obligation. The result is the exact gap the Chinese market already closed: an owner who holds a warranty document but no one who is paid to make the asset perform. The professional buyers — funds, aggregators, and the larger industrials — already contract O&M explicitly, because their lenders require it. The mid-market, where the deal is smaller and the buyer less specialised, is where the gap is widest, and where the same year-two reckoning is coming.
Treat the O&M contract as the asset’s life support, not an optional add-on, and require five things. One: a named party who is contractually responsible for operation — not “the manufacturer and the installer will coordinate”, but one entity with a duty to perform. Two: a defined dispatch and operating window, because how the asset is cycled determines how long it lasts, and the O&M contract is where that window is enforced. Three: a response and resolution commitment with a measurement point and a remedy. Four: condition data and maintenance records that are owned by you and survive the contract. Five: a link between the O&M obligation and the warranty — the warranty should explicitly stay valid when the named O&M party operates the asset, so the two cannot be used to blame each other. A warranty with a named O&M party behind it is a warranty with teeth; without one, it is a piece of paper.
No manufacturer or EPC reviewed this guide before publication. Corrections are published, and flagged, within 48 hours of verification. Sources: CNESA user-side storage data (June 2025, 328.6 MW / 841.4 MWh, C&I = 99%); SNEC 2025 AI-driven O&M shift (InfoLink Consulting); Dataintelo O&M market report (Asia-Pacific 36.2% share, 2025).
