Demand is surging. Efficiency has stalled.
Data-centre electricity use is on track to more than double this decade, driven by AI and cloud growth. Grid connections, not land or chips, now set the pace of expansion. Cutting overhead is the fastest way to free megawatts without waiting on the grid.
~945 TWh by 2030
Global data-centre demand more than doubles by 2030. In Australia, data centres are forecast to grow from about 2% to about 6% of grid consumption this decade.
PUE stuck near 1.54
The industry-average PUE has barely moved in years. On a typical site, about a third of every kilowatt-hour never reaches a server.
Siloed systems hide it
Chillers, CRAHs, pumps, UPS and IT halls are watched in separate tools. The waste sits in the gaps between them, where no single screen shows it.
Data centres used about 1.5% of the world's electricity in 2024. That more than doubles by 2030.
IEA, Energy and AI (2025)Share of US electricity used by data centres, 2023 to 2028.
LBNL for US DOE (2024)Share of the country's metered electricity used by data centres in 2024.
CSO Ireland (2025)The efficiency bar new projects had to meet to win a share of fresh data-centre capacity.
IMDA Green DC RoadmapOne holistic view of the whole facility.
You can't cut what you can't see. The GREO Control Room puts cooling, power chain and IT load on one screen, ranks the waste live in dollars, and shows the gap between what the site draws and what it should. This one runs on sample data for a 20 MW facility. Press pause to freeze it.
Every system, one screen
Cooling, power chain and IT load modelled together, so interactions show up.
Waste in dollars
The top five drivers ranked live by MW and A$ a year, so teams fix the biggest first.
Actual vs should-draw
A learned baseline for every system exposes the gap and its root cause.
Plain-English answers
Alice, GREO's on-site analyst, answers questions about the site without SQL or reports.
Reclaimed power is sellable capacity.
Grid connections are now the hard limit on data-centre growth. New connections take years, and some regions have paused them outright.
Every megawatt GREO takes out of cooling and conversion overhead is a megawatt of your existing connection handed back. You can put it to work as compute or colocation, with no new grid application.
How efficient is your site, really?
Enter four numbers and get an instant efficiency grade, what the avoidable overhead is costing you, and the grid headroom you could win back. Nothing you enter leaves this page.
| IT load | Headroom freed | Energy saved | Value / yr | CO₂ avoided |
|---|---|---|---|---|
| 5 MW | 0.45 MW | 3.9 GWh | ~A$0.6M | ~2,400 t |
| 20 MW | 1.8 MW | 15.8 GWh | ~A$2.4M | ~9,800 t |
| 50 MW | 4.5 MW | 39.4 GWh | ~A$5.9M | ~24,400 t |
Every 0.01 of PUE on a 20 MW site is worth about A$260K and 1,090 t CO₂ a year.
Assumptions: baseline PUE 1.54 (Uptime Institute 2025); savings from non-IT overhead only; 8,760 h/yr; energy A$0.15/kWh; grid 0.62 t CO₂e/MWh. Illustrative, not a quote.
Wholesale power prices across Australia's data-centre hubs.
The same wasted megawatt costs more in some states than others. This map shows the latest AEMO spot price in each region of the National Electricity Market, and what avoidable overhead on a 20 MW-IT site costs there each hour.
Get ahead of the scrutiny.
Data centres are becoming the public face of rising power bills and strained grids. Overseas, that pressure has already turned into moratoriums. Operators who can show verified efficiency gains will keep their licence to grow.
Grid strain
ERCOT's large-load queue jumped from 233 to 474 GW, about 90% of it data centres. NERC warns of shortfalls by 2028.
Household bills
Wholesale power prices rose by as much as 267% in some US markets from 2020 to 2025, and data centres are taking the blame.
Moratoriums
Eight or more US states have enacted or are pursuing limits on new data centres, with local pauses spreading.
Water
Industry-average water use sits near 1.8 L/kWh, against best-in-class of about 0.19. Communities are counting.
The rules are tightening worldwide.
Efficiency is moving from a nice-to-have to a licence condition. Here is where the pressure sits, and how GREO helps you meet it.
Sites with 500 kW or more of IT load must report energy, PUE, water use and renewables to an EU database each year. A proposed rating scheme would publish A–G efficiency labels from August 2027.
The Energy Efficiency Act sets PUE limits for new and existing sites. A 2026 draft amendment proposes easing new sites to 1.3 and existing sites to 1.6 from July 2027.
New capacity went only to projects designed for PUE 1.25. The national roadmap aims for every data centre to reach 1.3 over about ten years.
Data centres now use more than a fifth of the country's electricity, and grid capacity around Dublin is tightly constrained.
Data centres could use up to 12% of US electricity by 2028. Interconnection queues are swelling and several states are limiting new sites.
AEMO expects data centres to grow from about 2% to about 6% of grid consumption this decade. Questions about bills, reliability and water are already being asked.
How a verified savings program answers it
What GREO cuts, and what it reports.
GREO reduces the energy-driven metrics directly and tracks the rest transparently. Figures shown for the 20 MW reference site.
See the gap on any system.
This is MEGA, GREO's Micro-Efficiency Gap Analysis. Pick a system and see what it should draw against what it actually draws. The shaded gap is recoverable waste, traced to a root cause and a recommended action.
What GREO makes visible, and optimises.
One source of truth from the data hall to the boardroom, for facility engineers, sustainability leads, finance and operators. No rip-and-replace.
Cooling
Chiller setpoint reset, economiser staging, CRAH airflow balance and CHW pumping, tuned to live load and weather.
Power chain
UPS and PDU loss modelling, load consolidation, and eco-mode where the SLA allows.
IT load & capacity
Energy per unit of compute, idle and stranded servers, and the headroom you can resell.
PUE & predictive
Live PUE against a learned target, forecasting, anomaly detection and failure risk before it bites.
Carbon & water
CO₂, WUE and renewable matching tracked continuously, with audit-ready ESG reporting.
Secure & sovereign
Edge-first, role-based access, air-gapped Alice. ISO 27001 / 50001 / 5055 aligned.
Answers, not dashboards
Anyone on the facility team can question PUE, cooling and power performance in plain English and act on the answer, without waiting on a report.
Air-gapped by design
Alice runs on a bespoke small language model behind a secure retrieval boundary. She reads validated query results only, never your live control systems.
Every team, same numbers
Operators check overnight drift each morning. Sustainability leads pull verified carbon and water figures. Finance confirms the savings behind every invoice.
Find it. Fix it. Prove it.
MEGA closes the loop a BMS can't. It learns what each system should consume, exposes the true gap, traces the cause, and verifies the saving once it's captured.
Measure
A dynamic ML baseline learns the true energy signature of every system (chillers, CRAH, pumps, UPS and IT halls) across load and weather.
Optimise
The gap to actual draw is recoverable overhead. Autonomous agents trace the root cause and recommend setpoints, sub-second at the edge, even offline.
Verify
Every saving is measured and verified for PUE, WUE, contracts and carbon. Audit-ready proof, not a BMS estimate.
Layers over your BMS and DCIM.
No rip-and-replace. Deploy on your own hardware for full data sovereignty, or fully hosted in-region.
Your existing systems
GREO consumes the telemetry you already generate.
GREO edge + MEGA
Runs inside your domain. Real-time modelling and gap analysis.
Decisions & proof
From raw telemetry to banked, audit-ready savings.
We only win when you do.
GREO's commercial model is value-based. Our return is tied to the savings we verify on your site.
Modest setup fee
Connection to your BMS, DCIM and power telemetry, and a baseline for every system.
Subscription
The control room, Alice, MEGA analysis and audit-ready reporting across your sites.
Share of verified savings
We share in what we prove, measured against the baseline, so incentives stay aligned.
Four steps to start
Step through a sample 20 MW-IT site to see what changes at each stage.
Plug into what you run
Read-only connections to your BMS, DCIM, PDUs and meters. No new hardware to start, and nothing touches your control loops.
Built in heavy industry.
GREO's closed loop was first developed for mining and energy-intensive plants, where energy is the largest controllable cost. The same platform still serves them.
The team behind GREO.
See the waste on your own data centre.
Start with a single-site proof of concept, then scale across the estate. Book a 30-minute demo and we'll show you the gap on your own facility.
matt@greo.io · 1300 041 793