HV Substations & Renewable Energy

Your project is built.
Now get it across the line.

Closedout is a specialist completion and commissioning practice for high-voltage substation and renewable energy projects. We solve the problem that derails more projects than any other: the final 20%.

40+ Years in HV construction
600MW Substations delivered
330kV Highest voltage delivered
100% Focus on completions
Clarke Creek Wind Farm 330kV· McIntyre Wind Farm 330kV· Wambo 2 Wind Farm· Greenough River Solar Farm· Wheatstone LNG· BHP South Flank· APLNG Condabri· McArthur River Mine· Clarke Creek Wind Farm 330kV· McIntyre Wind Farm 330kV· Wambo 2 Wind Farm· Greenough River Solar Farm· Wheatstone LNG· BHP South Flank· APLNG Condabri· McArthur River Mine·

Most projects fail at the end.
Not at the start.

The construction phase is well-resourced, well-managed, and well-understood. It's the completion phase — commissioning, energisation, handover — where projects fall apart. Every time.

01

Commissioning chaos

The sequence isn't locked, protection testing is compressed, and the network operator approval is nowhere near ready.

02

Punch list overload

Thousands of defect items, no clear ownership, and subcontractors who've already demobilised.

03

Documentation gaps

As-built records are incomplete. The network operator won't approve energisation. The date moves again.

04

Missed energisation

PPA start dates, debt drawdown conditions, connection windows — all at risk from a completion process no one owns.

A completion process your project can actually follow.

Built from 40 years of HV construction experience, the Closedout Method treats the final phase as a discipline — not an afterthought. Five structured steps that take your project from construction complete to energised, handed over, and done.

01

Completion Programme

A dedicated completion programme — separate to the construction programme — that sequences every commissioning activity, documentation milestone, and approval requirement with realistic lead times and clear ownership.

02

Commissioning Sequence Lock

Early engagement with the network operator (Powerlink, Transgrid, or relevant NSP) to agree the energisation sequence and document requirements — months before you need them, not weeks.

03

Live Documentation System

As-built records updated in real time throughout construction — not chased down at the end. Turnover packs and handover documentation that are ready when you need them.

04

Subcontractor Completion Management

Clear close-out scopes for every subcontractor, with agreed completion dates and interface ownership at every trade boundary. No gaps. No ambiguity.

05

Handover & Energisation

A structured handover process that brings the client's operations team in early, manages the commissioning hold points systematically, and delivers energisation on time — cleanly.

Free Scorecard

How completion-ready is your project?

Answer 15 questions across three critical areas. Get your personalised score and a tailored report that shows you exactly where your project is at risk — and what to do about it before it's too late.

01
Commissioning Sequence NSP engagement, protection testing, energisation approvals — 5 questions
02
Documentation & Turnover As-built status, ITP compliance, turnover pack readiness — 5 questions
03
Subcontractor Close-out Scope ownership, interface management, demobilisation planning — 5 questions

Your results are emailed instantly. No spam. Unsubscribe anytime.

Closedout Scorecard

HV Project Completion Readiness Scorecard — 15 Questions, 3 Minutes

⚠ At Risk0 – 34 / 75

Critical gaps in your completion process. Energisation delay is likely without immediate intervention.

◎ On Track35 – 59 / 75

Foundations in place but specific gaps identified. Your report shows exactly where to focus now.

✓ Closedout Ready60 – 75 / 75

Strong completion discipline across all three areas. Your project is set up to energise on time.

15 questions  ·  3 minutes  ·  Instant results  ·  Free

40 years. One very specific problem.

Licensed Electrician — QLD, WA, NT, NZ Apprenticed at New Plymouth City Energy, NZ — a hydro generation and HV network operator
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40+ years in HV construction Wind, solar, HV substations, LNG, gas processing, mining — Australia, NZ, Saudi Arabia, SE Asia, UK
EEHA Certified | S1, S2, S3 Safety Systems MSIR 1995 Section 44 | LOTO & Permit to Work
📍
Based in South-East Queensland Operating across Australia

I've spent 40 years building high-voltage substations and energy infrastructure. And in that time, I kept seeing the same thing: spectacular projects, great teams, solid construction — and then the wheels fall off in the final stage.

Commissioning gets compressed. The completion sequence is a mess. Energisation gets pushed back six months. The whole project finishes under a cloud.

"The projects that get to energisation on time have one thing in common: they treat completion as a phase in its own right — not something that happens naturally at the end."

I built Closedout because the completion and commissioning phase of HV and renewable projects deserves the same discipline as the construction phase. That's all we do. And after 40 years, we know exactly how to do it.

Gary Stachurski
Founder, Closedout | Licensed Electrician | HV Completions Specialist

"

Gary's completions systems transformed how we approached handover on Clarke Creek. The documentation discipline he established from day one made the difference between a clean energisation and the chaos we'd seen on previous projects.

Glenn Forsyth Energy Queensland
"

The level of QA and completions management Gary brought to Greenough River was unlike anything we'd worked with before. His structured approach to turnover and handover gave us confidence throughout the final phase.

John Christie Juwi Renewable Energy

Is your project in the
final 20%?

If you're not confident about your completion sequence, your documentation status, or your energisation timeline — that's exactly what Closedout is here for. Let's talk.