Choose your BESS supplier on evidence, not the vendor's word.
ACCURE's performance engineering services benchmark suppliers and verify specifications before you sign, so your contracts reflect reality and your warranty and LTSA terms are enforceable.
The cheapest place to remove risk is before you sign.
Buying batteries isn't like buying transformers. Chemistries evolve, specifications shift mid-bid and supplier rosters change overnight. Add warranty fine print, ESG audits and shifting trade rules, and the risk stacks up on a purchase your financing depends on. The teams that win negotiate from independent data, not vendor brochures.
BESS procurement services we offer.
ACCURE's performance engineering services for battery storage bring the industry's largest independent BESS dataset to procurement, pre-acquisition diligence, and LTSA, warranty and PPA negotiations, backed by benchmark data from 24+ GWh of supported capacity across 100+ sites worldwide.
Pre-qualification & RFP management
Set the technical bar before bids arrive. We define quality criteria, evaluate RFPs and set the acceptance criteria for Factory Acceptance Tests (FAT), so only compliant suppliers reach your shortlist.
Supplier audits & benchmarking
Independent, data-led benchmarking of production quality, capacity, warranty terms and after-sales support, so you compare suppliers on evidence, not claims.
Risk analysis & reporting
Supply-chain, technology and execution risk assessments, with supplier scorecards that make your procurement decisions defensible to boards and lenders.
From “impossible to audit” to “easy to enforce”.
Challenge
A BESS supplier proposed an availability clause defined by two multi-line formulas, 25 variables and special carve-outs. Auditing it after each outage would mean manual data wrangling, making it effectively unenforceable.
ACCURE insights
Using one year of anonymised data from across our analysed BESS portfolio, we showed a single three-hour fault could be read as anywhere between 92% and 99% availability, exposing the operator to dispute.
Outcome
We recommended rejecting the proposal in favour of the one-line industry standard: easily retrieved, third-party verifiable and debate-free. After negotiation the vendor accepted, and compliance is now tracked in ACCURE's platform with zero extra effort, giving the operator a defensible basis for any future warranty claim.
ACCURE’s independent experts guide you through the entire battery journey—from procurement to day-to-day operation and beyond. Our data-driven software and services cut risk, raise performance, and protect your investment. Armed with insights from live assets spanning every major vendor, region, and use case, we meet you where you are and move your program forward with confidence. Explore the stages below to see how we add value at every milestone of the battery lifecycle.
How we help companies with BESS procurement.
ACCURE pairs independent battery analytics with performance engineers to assess suppliers against technical, commercial and contractual standards. We run pre-qualification, benchmark supplier and FAT data against your specification, and turn it into a defensible record, so you procure from evidence and negotiate enforceable warranty and LTSA terms.
FAQs
It lets you benchmark suppliers on evidence rather than brochures, verify specs before you sign, and negotiate warranty and LTSA terms that are enforceable and reflect real-world performance.
Yes. ACCURE is independent and OEM-agnostic, with no commercial ties to manufacturers.
Yes. ACCURE gives lenders and technical advisers independent, defensible performance evidence to inform their diligence, strengthening the technical inputs a financing decision relies on.