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DC-LEARN · LEGACY BUSINESS ENGINEERS LTD
Les Murphy CEng MIEI · Legacy Business Engineers Ltd · Dublin
DC-LEARN · THE IRISH DC RETROFIT PROGRAMME

The Data Centre Clock
is already ticking

Eight clocks, six of them law, are closing in on Ireland’s existing data centres, and their deadlines land in the same decade. Walk one building from the grid connection to the rack, and learn what each rule demands, what it costs, and how to engineer the answer.

Grid connection rules, energy reporting, refrigerant bans and five more ↓

By the end you can understand, question and defend the engineering decisions that decide whether a data centre works — technically, commercially and sustainably. Every level ends with a call to make; every module ends with the business case.

Or try the method on the building now: 20 seconds ↓
You make the call. Then the building shows you.

Every module works on one building, Clonshaugh in Dublin. Try the method on it now: it takes about 20 seconds.

Try it

This building’s IT load is about to double. Nothing will break.

What runs out first? Make your call.

IT load
1,200 kW
in 2013

Make your call above, then move the load.

Clonshaugh in 2013 at 1,200 kW: a spare UPS string, two spare generators, four standby CRAH cooling units, and the grid connection at 40%. Cooling: CRAH units 4 ON STANDBY Hall A Hall B CRAH units running: 8 of 12 Data halls 1,200 kW of IT Hall A Hall B UPS ONE SPARE (2N) String 1 String 2: spare Strings needed: 1 of 2 Generators TWO SPARE (N+2) G1 G2 G3 G4 Sets needed: 2 of 4 Grid and transformer ROOM 2.0 of 5.0 MVA used limit 5.0 MVA

The dashes carry power up from the grid, and heat from the halls to the chillers. What changed in all this equipment between 2013 and today: nothing. Clonshaugh is the course’s fictional reference building; every figure is from its facility register, for teaching only.

  1. 1
    We find your starting point
    Nine short questions open each module. Mark what you already knew, and the module suggests the level to start at.
  2. 2
    You make the call first
    Each level asks its question before it shows the answer, like the one above.
  3. 3
    You follow the consequence
    One change moves through power, cooling, resilience, regulation and cost, and a calculator runs it on the building.
  4. 4
    You make the decision
    Every level ends with “Make the call”, seen by six professionals, and most modules close on one big call, judged against the module’s own figures.
  5. 5
    It comes back later
    The facts you learned come back for review a day, a week and a month later, in this browser.

Every module also has a tutor that answers from that module’s own content, and a chapter of the novel set in the same building.

Six professionals. One building. Very different questions.

Every module teaches one piece of engineering through the six people who work on the same building. The facility manager, the fund manager, the engineer, the ESG analyst, the cost manager and the colo CTO each get the answer to their own question, and learn why the others ask theirs.

Declan — Facility Manager
Declan
Facility Manager
“Which breaker feeds which PDU at 3am?”
Ann — Fund / Asset Manager
Ann
Fund / Asset Manager
“What does PUE 1.6 mean for our valuation?”
Mark — MEP Engineer
Mark
MEP Engineer
“Show me the standards reference.”
Sarah — ESG Analyst
Sarah
ESG Analyst
“Which rules reach this building, and when?”
Tom — QS / Cost Manager
Tom
QS / Cost Manager
“What’s the lifecycle cost?”
Niamh — CTO, Colo Operator
Niamh
CTO · Colo Operator
“How much of this capacity can I actually sell?”
16 modules. 9 levels each. Every number sourced.
16Modules
48Learning Hours, max
144Levels
480Assessment Questions
Start free.  Modules 000, 001, and 002 are open access — 6–9 learning hours, full content, assessments, and certificates. No account required. Tap any module photo below to watch its two minute preview first. Start with Module 000 →
Anatomy of a Data Centre
DC-LEARN-000 FREE
Anatomy of a Data Centre
What a data centre is, and the reference facility every other module works on.
→ What Is a Data Centre?
→ The Power Chain — Grid to Rack
→ Support Systems — Fire, Security, BMS
→ The Gap — 2013 vs 2026
→ The Business Case
9 levels · 2–3 learning hours
Open module →
Data Centre Power Chain
DC-LEARN-001 FREE
Data Centre Power Chain
From the grid connection to the processor: every stage, every loss, every point of resilience.
→ Utility Supply & MIC
→ LV Main Switchboard
→ Static Transfer Switch
→ Busway
→ Server PSU
9 levels · 2–3 learning hours
Open module →
Data Centre Cooling Chain
DC-LEARN-002 FREE
Data Centre Cooling Chain
From the chip to the open air: how the heat leaves, and how much electricity it costs to move it.
→ Server Heat Output
→ CRAH/CRAC Units
→ Chillers
→ Condenser / Heat Rejection
→ Atmosphere
9 levels · 2–3 learning hours
Open module →
Redundancy & Topology
DC-LEARN-003 PRO
Redundancy & Topology
How equipment is arranged so that a failure is a line in the log, not an outage.
→ Single Component Reliability
→ 2N Redundancy
→ Uptime Tier Classification
→ Concurrent Maintainability
→ Topology Design for Retrofit
9 levels · 2–3 learning hours
Open module →
Energy Efficiency & PUE
DC-LEARN-004 PRO
Energy Efficiency & PUE
Measuring the overhead, where it goes, and what the Irish climate lets you do about it.
→ PUE — What It Measures and Why It Matters
→ CRAC vs CRAH
→ Cooling Strategies
→ ASHRAE Thermal Envelopes
→ Cooling Retrofit in a Live Facility
9 levels · 2–3 learning hours
Open module →
Backup Power: Generators, UPS & BESS
DC-LEARN-005 PRO
Backup Power: Generators, UPS & BESS
The chain that keeps the lights on when the grid drops: engines, fuel, batteries, switching.
→ Why Backup Power Matters
→ HVO & Alternative Fuels
→ Battery Technologies
→ Transfer Switching & Controls
→ System Integration
9 levels · 2–3 learning hours
Open module →
Grid Connection & HV Infrastructure
DC-LEARN-006 PRO
Grid Connection & HV Infrastructure
Getting onto the Irish grid: who you apply to, what they ask, and what you build behind the substation.
→ The Irish Grid
→ HV Substation Design
→ Dual Feed Design
→ Grid Code Compliance
→ Future Grid
9 levels · 2–3 learning hours
Open module →
Regulatory Landscape
DC-LEARN-007 PRO
Regulatory Landscape
The rules that decide whether a data centre in Ireland can be built, licensed, financed and kept running.
→ EED Article 26
→ EU Taxonomy
→ F-Gas Phase-Down
→ CRREM
→ Regulatory Horizon
9 levels · 2–3 learning hours
Open module →
Fire Safety for Irish Data Centres
DC-LEARN-008 PRO
Fire Safety for Irish Data Centres
Catching a data hall fire early, stopping it without water, and keeping it from spreading.
→ DC Fire Risk Profile
→ Clean Agent Suppression
→ Pre-action Sprinklers
→ Smoke Control & HVAC Integration
→ Emerging Fire Risks
9 levels · 2–3 learning hours
Open module →
BMS, DCIM & Monitoring
DC-LEARN-009 PRO
BMS, DCIM & Monitoring
The sensors, software and alarms that turn data into lower bills.
→ BMS vs DCIM — Two Systems, One Facility
→ Communication Protocols — BACnet, SNMP, Modbus
→ DCIM Software — Selection, Deployment, Adoption
→ EED Article 12 — Reporting Infrastructure
→ Monitoring Strategy Roadmap — Clonshaugh Retrofit
9 levels · 2–3 learning hours
Open module →
Sustainability & Net Zero Pathway
DC-LEARN-010 PRO
Sustainability & Net Zero Pathway
Measuring carbon, finding the big reductions, and a credible path to net zero.
→ Carbon Accounting — Scope 1, 2 & 3
→ CRREM & Misalignment Risk
→ Science Based Targets (SBTi)
→ Water Stewardship (WUE)
→ Net Zero Roadmap — Clonshaugh 10-Year
9 levels · 2–3 learning hours
Open module →
Physical Security & Access Control
DC-LEARN-011 PRO
Physical Security & Access Control
Rings of defence, from the fence to the rack door.
→ Security Zones & Defence-in-Depth
→ Vehicle Access & Screening
→ Data Hall Access Control
→ CCTV, Surveillance & Monitoring
→ Security Retrofit Strategy & Compliance
9 levels · 2–3 learning hours
Open module →
Energy Centres & Microgrids
DC-LEARN-012 PRO
Energy Centres & Microgrids
Bringing your own power: engines, batteries, switchgear, and the market they trade in.
→ Why Energy Centres Exist
→ Battery Energy Storage Systems (BESS)
→ SEM Participation & DS3/FASS Revenue
→ CRU Readiness & Reporting
→ Integrated Energy Strategy for Retrofit
9 levels · 2–3 learning hours
Open module →
Commissioning & Handover
DC-LEARN-013 PRO
Commissioning & Handover
Proving every system works before you trust it with live load.
→ Commissioning Philosophy & Planning
→ Site Acceptance Testing (SAT)
→ Load Bank Testing & Power Chain Proving
→ Seasonal Commissioning & Long-Term Performance
→ Documentation, Handover & Operational Readiness
9 levels · 2–3 learning hours
Open module →
High-Density & Liquid Cooling
DC-LEARN-014 PRO
High-Density & Liquid Cooling
What replaces air when it runs out of road, and what it does to the rest of the building.
→ Why Air Cooling Hits a Wall
→ Coolant Distribution Units (CDUs)
→ Hybrid Air/Liquid Transition
→ Structural & Spatial Constraints
→ Retrofit Strategy
9 levels · 2–3 learning hours
Open module →
CRU Readiness & Energy Transition
DC-LEARN-015 PRO
CRU Readiness & Energy Transition
What the regulator’s connection decision requires, what it costs, and how the pieces fit one programme.
→ The CRU Decision — What Changed
→ Dispatchable Generation — Sizing & Technology
→ 80% Renewable Obligation — PPA Pathway
→ EPA & Environmental — Licensing Triggers
→ The Full Compliance Programme — Integration
9 levels · 2–3 learning hours
Open module →

Verifiable certificates

Three tiers. Engagement for completing the content. Completion for passing the assessment at 80%. Achievement for distinction at 90%. Every certificate carries a unique number that anyone, including your employer, can check on the LBE register at learn.legacybe.ie/verify.

Legacy Business Engineers Ltd
Certificate of Completion
This certificate is awarded to
Declan Murphy
for passing the three-tier assessment of
DC-LEARN-003: Redundancy & Topology
DC Learning Series · Legacy Business Engineers Ltd
All Engagement requirements met · Assessment score ≥ 80% · 3 learning hours
Assessment score: 84% · Pass
3 learning hours per module · 48 hours full series
LBE · Dublinverify →

Built by a building services engineer, applied to the building that needs it most

DC-LEARN was built by Les Murphy CEng MIEI MBA MSc — a Chartered Engineer with thirty years in mechanical and electrical building services design in Ireland and the UK: the power, cooling, fire and controls systems every building depends on, applied here to the building that depends on them most. The course is that discipline turned on the Irish data centre retrofit. It is built from the standards, the regulators’ own decisions and published industry practice, and every figure on screen carries its source and how well-established it is.

This is not a repackaged international course. Every standard and method is applied to Irish data centres, with Irish regulatory and cost inputs where they apply: CRU, SEAI, ESB Networks, EPA, and the EU Taxonomy as applied in Ireland.

Chartered Engineer (CEng MIEI) MBA · MSc · BSc(Hons) · BA MEP Consultancy — Dublin MEP Building Services — 30 Years
What LBE provides
Not investment advice — LBE provides technical and regulatory intelligence. Decisions remain with you. Indicative and non-certifying, standards-referenced throughout.
Structured learning — 2 hrs Engagement / 3 hrs Completion / 3 hrs Achievement per module. Up to 48 hrs for the full series. Verifiable certificates per module.

Eight Clocks. One Building. All Connected.

Eight clocks, six of them law, are ticking on Ireland’s existing data centres. Inside the building a second clock is running: since 2013 the IT load has doubled, from 1,200 kW to 2,400 kW, on plant nobody touched. Nothing failed. Only the load moved. Explore any clock and trace its connections — or press play for the 60-second story.

Eight clocks — EU Taxonomy, F-Gas, CRU renewables, EED Article 12, Carbon Tax, EPA IE Licence, CRREM and SFDR — arranged around one Irish data centre building, with the connections between them. CLONSHAUGH DATA CENTRE 400 racks · 2.4 MW · PUE 1.50 · Built 2013
Tap any clock to see its deadline — or press play.
EU Taxonomy
Activity 8.1: Code of Conduct practices, independently verified; refrigerant GWP ≤ 675. No numeric PUE threshold — PUE ≤ 1.3 is the voluntary CNDCP target.
F-Gas EU 2024/573
One regulation, two systems — R-410A on the roof, FM-200 in the fire suppression. 1,828 tCO₂-eq on site.
CRU/2025236
80% renewable supply obligation — this building sits at roughly 40%.
EED Article 12
PUE, WUE, ERF and REF reporting to SEAI, due every 15 May.
Carbon Tax
Generator diesel: €63.50 per tonne today, €71 from 1 May 2027, €100 by 2030. Natural gas: cut to €48.50 from 14 Oct 2026 (Budget 2027).
EPA IE Licence
Dormant until scale wakes it — conditional above 50 MW thermal.
CRREM Pathway
LBE-derived pathway — do-nothing misaligns around 2031.
SFDR
The fund’s Article 8 classification rests on this asset’s disclosures.

Eight clocks, six of them law, drafted by different people in different years, all land on the same Irish data centres in the same decade. Nobody coordinated them — but the deadlines coordinated themselves. DC-LEARN maps every connection: the story teaches the why, the modules teach the how. Three chapters and three modules are free.

DC-LEARN · Companion Story
The Data Centre Clock
Engineering the Irish Retrofit

The book is inside every module.

Learn the engineering, then read it in action. A 15-chapter business novel set in the same building, where six professionals find eight clocks already ticking. Each chapter sits inside its module as The Story tab.

Prologue, Chapter 1: The Walk & Chapter 2: Heat Rises — free with the free tier

Start free. Go further when you’re ready.

Three full modules at no cost, certificates included. All prices exclude Irish VAT at 23%.

Choose your access
Full course access, one price
Free
€0
3 modules · 6–9 learning hrs
000, 001, 002. Full content, assessments, certificates.
Module Certificate
€49
ex VAT · per module
Any single module: full assessment and a verifiable certificate. Pay as you go.
Unlocks that module only. For all 16, see Practitioner.
Corporate
€9,500
ex VAT · /year · 10 seats
Team tracking. Bulk certs. Quarterly updates. Team seats from €39 per module.
Contact us →
Enterprise
€18,000+
ex VAT · /year · custom
Unlimited seats. Custom reporting. Bespoke modules.
Contact us →
14-day money-back guarantee. If the programme isn’t what you expected, request a full refund within 14 days of purchase — no questions asked, provided you have not completed more than 50% of the paid modules. See terms and conditions.

Ready to start?

Start Learning — Free Full path — €495
Or talk to an engineer about Corporate or Enterprise access.

Not ready to decide today?

Leave your email and we’ll send you the free-module links, plus the regulatory updates that affect Irish data centres. No spam — unsubscribe any time.

Frequently asked

DC-LEARN serves six professional audiences who interact with Irish data centres: Operations managers responsible for day-to-day facility management and CRU reporting; Fund and asset managers with DC assets in their portfolio; MEP engineers working on retrofit or new-build projects; ESG and sustainability leads managing EU Taxonomy, EED, and CRU obligations; QS and cost managers preparing capital budgets or reviewing retrofit proposals; and CTOs and colocation operators selling capacity under SLA. Every module is written to speak to all six — the same engineering, six different perspectives on why it matters.
Uptime and CNet are international programmes. DC-LEARN is built specifically for the Irish retrofit market — CRU/2025236 obligations, SEAI emission factors, ESB Networks connection tiers, EPA IE Licence thresholds, and Irish carbon tax trajectories (after Budget 2027: €63.50/tCO₂ on generator diesel, rising to €71 from 1 May 2027 and €100 by 2030; natural gas cut to €48.50). You will not find a module on CRU annual energy reporting or the 80% renewable obligation in a generic international DC course. One boundary stated plainly, because it is a deliberate difference rather than a gap: CDCDP goes deep on structured cabling, containment and bonding, and DC-LEARN does not cover that ground — a DC-LEARN certificate is not equivalent to CDCDP and is not offered as one. The sixteen modules are built for the people who commission, fund, operate and report on data centres rather than the people who cable them. DC-LEARN also costs a fraction of an international course such as Uptime ATD or CNet CDCDP, with Irish-specific content and lifetime access.
A weekly automated watch checks the same regulator sources this course cites — CRU, SEAI, EirGrid, the EU's own registers, and more. When one of them moves, we update the sourced record first and regenerate every module that teaches that figure, usually within the week the regulator publishes the change — not at the next print run or the next cohort. Every number on screen carries its source and how well-established it is (Verified, Industry, Estimate, or Judgement), so you can see the difference between a settled figure and a screening assumption for yourself. Updated when the regulator moves, not when the brochure reprints.
Checking regulator sources…
Yes. Each module awards a verifiable certificate on completion. Engagement certificates are awarded for completing all content (2 learning hours per module, no assessment). Completion certificates require an assessment score of 80% or above (3 learning hours per module). Achievement certificates require 90% or above (3 learning hours per module — the distinction is recorded on the certificate). Full series: up to 32 hrs Engagement / 48 hrs Completion or Achievement. Each certificate carries a unique certificate ID and can be checked against the LBE register at learn.legacybe.ie/verify. Learning hours and assessment scores are stated on every certificate for self-directed CPD recording.
No. Every level opens with “Know it”: plain English first, before any numbers or standards. A fund manager can get full value from “Know it” and “Work it out”, while an MEP engineer can push on to “Make the call”. You follow the path that matches your role, and the Clarify button on every fact explains it three other ways.
If the programme is not what you expected, request a full refund within 14 days — no questions asked. The only exclusion: if you have completed more than 50% of the paid modules, the refund window closes. Refunds are processed within 5 working days via Stripe. See terms and conditions for full details.
Yes. The full DC-LEARN Practitioner path (€495, ex VAT) is a single invoice — straightforward to put through as professional development, and individual module certificates (€49) are small enough for most self-approval limits. The Corporate tier (€9,500/yr for 10 seats, team seats from €39 per module) includes team progress tracking and bulk certificates, which makes it easy to report learning activity to HR or compliance teams. If you need a formal quote or purchase order raised, contact us.
DC-LEARN is standalone. It teaches you enough to ask better questions and make more informed decisions about your facility, whether you work with LBE or not. If you want LBE to assess a specific data centre, that’s a separate conversation — talk to an engineer about your situation.