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Last reviewed · How we check sources
Resources
Guides and checklists
Practical, source-backed guides for buyers, engineers and analysts.
- 2buyer checklistsCoolPower Index
- 8guidesCoolPower Index
- 3toolsCoolPower Index
- 2calendarsCoolPower Index
Where to start: from first question to purchase
- UnderstandGuides on chip power, energy supply and IT equipment
- Ask the right questionsBuyer checklists for liquid cooling and critical power
- Explore and compareDC Explorer in 3D and supplier comparison
- EstimateCost benchmarks and a worksheet with visible assumptions
- Check the datesPolicy deadlines and data centre events
Explainers
- Power explainer800 V DC power for AI racks, explainedWhat 800 V DC power for AI racks is, why NVIDIA says 54 V in-rack power hits limits above 200 kW, the copper and efficiency claims, and what is still maturing.
- Cooling explainerDirect liquid cooling, explainedHow direct liquid cooling works: cold plates, the technology cooling loop, CDUs and facility water, ASHRAE W17 to W45 water classes, and single versus two-phase.
- Rack explainerNVIDIA Kyber rack-scale systems, explainedWhat NVIDIA Kyber is: the MGX rack after Oberon, vertical compute blades, 144 GPUs per rack, 800 VDC power and liquid cooling. NVIDIA's own roadmap and dates.
- Regulation explainerSecondary cooling loop regulationHow the CDU controls the secondary loop and the rules that apply.
All explainers · Policy deadline calendar · Critical power package boundaries · Liquid cooling retrofit RFI
Buyer checklists
Buyer checklist · 2026-10-21
Liquid-cooling retrofit: an interface-first RFI
Compare the same system boundary before comparing cooling capacity or price.
Buyer checklist · 2026-10-21
Critical power: compare package boundaries before prices
A buyer checklist for UPS, distribution, backup and commissioning responsibilities.
Guides
guide
Capacity definitions: IT, facility, grid and thermal MW
Data centre capacity numbers mix very different things: IT load, facility power, grid connection, thermal cooling capacity and battery energy. This guide explains each measure, how they relate, and the roll-up rules CoolPower Index uses so that unlike numbers are never added together.
guide
CDU comparison guide
How to compare coolant distribution units fairly: which fields matter, why capacity only means something at a stated approach temperature, flow and fluid, and a table of published CDU data with every missing value marked not disclosed rather than guessed.
checklist
Cooling and power RFI checklist
A practical request-for-information checklist for data centre cooling and power equipment, covering supplier status, product shipping status, CDU and liquid cooling details, heat rejection, power and backup, and commercial terms, so bids can be compared on the same basis.
guide
Cooling technology selection guide
A plain guide to choosing between air, rear-door heat exchangers, direct-to-chip liquid cooling (single and two-phase) and immersion, and to matching heat rejection, water temperature and heat reuse options to rack density, site constraints and the policy context.
calendar
Data centre policy deadline calendar
An outline calendar of dated data centre policy milestones across the CoolPower Index seed markets, built from the site's sourced policy records: reporting deadlines, compliance dates and consultation closes, each linked to its policy record and official source.
Guide
How chip power drives rack density and cooling
Power, cooling and roadmap data for GPUs, AI accelerators, HBM and network silicon, from vendor sources.
Guide
Data centre power and water
Forecast electricity demand to 2030 and beyond, electricity and water by data centre type, how cooling changes both, a calculator and plant noise.
Guide
Energy supply pathways
Grid, on-site generation, storage, renewables and nuclear compared by delivery, firmness and timing.
Library
IT equipment that changes the facility
Power and cooling requirements of rack systems, servers and accelerators from vendor documentation.
Tools
Tool
DC Explorer
Conceptual 3D campus, data hall and 17 components with buyer questions, sources, a scenario calculator and links to supplier categories. Add components to your brief.
Tool
Requirement brief builder
Turn your requirement into a structured brief with explicit unknowns. Saved only in your browser. Export as CSV, JSON or print.
Library and tool
Cost benchmarks and worksheet
Dated, sourced construction cost benchmarks with scope, and a worksheet that withholds totals when a price is unknown.
Calendars
How deep each buyer checklist goes
Counted from each checklist on CoolPower Index.
Show the data as a table
| Checklist | Questions | Sources |
|---|---|---|
| Liquid-cooling retrofit: an interface-first RFI | 5 | 2 |
| Critical power: compare package boundaries before prices | 5 | 2 |
Watch: liquid cooling in practice
Official videos from Schneider Electric and Vertiv's own YouTube channels. They load from YouTube only when you press play. Inclusion is editorial, not an endorsement.