Taking the load off energy and utilities finance teams

Contractors, capital projects and a long list of approvers mean invoices rarely take a straight line. We capture every line accurately, match it against your POs and goods received notes, and post it to your ERP.

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Real-time

invoice and order processing

17,000+

businesses in our community

SAP, IFS, Oracle

and more ERP integrations

Peppol Access Point

accredited

We understand what makes energy and utilities AP different

Wired to make life easier for energy and utilities finance teams, because we know how you work.

Contractors and subcontractors

Maintenance and build programmes run on contractors and subcontractors, each billing against POs, work orders and agreed rates.

Capital and operational spend

Spend splits between capital projects and daily operations, so every line needs coding to the right asset, project or cost centre.

Field approvals

Sign-off often sits with engineers and project managers in the field, so invoices need to reach approvers wherever they are.

Regulators and auditors

Regulated operators need a clear record of who approved what, and when, whenever someone asks.

How Open ECX works for energy & utilities AP teams

Invoicing automation that speaks retention, variations and cost codes fluently

The invoice lands

PDF, EDI, whatever they've always sent. We're easy on format, so your contractors and suppliers don't have to change a thing.

Extracts every field

Retention, variations, cost codes, all lifted straight off the page. No squinting required.

Matches against PO and GRN

Three-way matching catches mismatches before they get anywhere near your ledger.

Posts straight to your ERP

Approved invoices post to your ERP with every step along the way being recorded.

What energy and utility teams achieve with Open ECX

Accuracy, speed and hours back, project by project.

Zero

Changes from your contractors and suppliers

They keep invoicing the way they do now.

100%

Invoice data extraction accuracy

Across all document types and formats.

4-6 weeks

Typical time to go live

From contract signed to first automated invoice.

16 hours saved

per 1,000 invoices

Time savings seen by Octavius.

All case studies

Here's what our customers say...

Payment processing speed

"Since partnering with Open ECX, we've seen a reduction of 6 days in our payment processing time, despite no increase in staff numbers and an increase in the number of invoices processed."

Richard McDermott, Assistant Accountant @ Farrans

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Three-way matching efficiency

"It previously took 15 minutes to process one document into our Sage system. Now with Open ECX, it takes a minute, so the efficiencies there are massive."

Lee Carmichael, Group Director of Finance @ MadiganGill

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EFFICIENCY SAVINGS

"Since partnering with Open ECX, we've experienced significant improvements in our payment processes, allowing us to build stronger relationships with our suppliers."

Nikolaos Sapounas, Supply Chain Manager, Octavius

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Wiring in the rest of your finance process

Start with invoicing. Ordering and statement reconciliation plug into the same platform.

E-ordering automation

We take customer orders from any channel, check them against your business rules, and post straight to your SOP and ERP in real time.

Explore e-ordering automation

Statement Reconciliation

We match supplier statements automatically, catching duplicate payments and missed credits before they reach the ledger, with a full audit trail behind every match.

Explore statement reconciliation

Works with the ERP systems energy and utilities businesses already run

No disruption, no lengthy integration project. Your existing stack stays exactly as it is.

Resources for energy and utility finance teams

LDC names Open ECX CEO Nathan Ollier as One to Watch in its Top 50 2026

EDI invoicing vs invoice automation: what's the difference, and do you need both?

8 best statement reconciliation software options 2026

Frequently Asked Questions

Can approvers sign off from the field?

Yes. Approvals can be managed in the portal or by email, with multi-level rules that match how you sign things off. We flag errors and send them back to suppliers.

Which ERP systems do you integrate with?

SAP, IFs Microsoft Dynamics AX and more. If your finance team runs it, chances are we already talk to it, and we manage the integration so contractors see no disruption.

Do my contractors need to change how they invoice?

No. Contractors keep sending invoices exactly how they already do, PDF, EDI or email. Open ECX converts and validates everything behind the scenes.

Ready to switch on faster AP?

See how quickly an invoice can go from inbox to ERP. Book a demo today.

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