--- description: "NTT Hemel Hempstead 3 Data Center (HH3): operational data center in Hemel Hempstead, United Kingdom, operated by NTT DATA's Global Data Centers division." title: NTT Hemel Hempstead 3 HH3 — Hemel Hempstead Data Center image: https://dchub.cloud/og-brand-v2.png --- [Home](https://dchub.cloud/) · [Facilities](https://dchub.cloud/facilities) · [United Kingdom](https://dchub.cloud/facilities/in/gb) · [London](https://dchub.cloud/dcpi/london) · NTT Hemel Hempstead 3 Data Center (HH3) # NTT Hemel Hempstead 3 HH3 — Hemel Hempstead Data Center - Operator NTT DATA's Global Data Centers division - Status Operational [Hemel Hempstead, GB](https://dchub.cloud/dcpi/london) **NTT Hemel Hempstead 3 Data Center (HH3)** is a data center operated by NTT DATA's Global Data Centers division in Hemel Hempstead, GB. The facility is currently operational. Status Operational [Market Hemel Hempstead](https://dchub.cloud/dcpi/london) [Country GB](https://dchub.cloud/facilities/in/gb) Source: PeeringDB · Verified Nov 11, 2026 against PeeringDB · Basis: cited ([what this means](https://dchub.cloud/data-sources)) ## Market intelligence [AVOID](https://dchub.cloud/dcpi/london "Full DCPI breakdown") London [ISONGESO](https://dchub.cloud/dcpi/london)[DCPI composite10.1](https://dchub.cloud/dcpi/london)[Excess-powerLocked](https://dchub.cloud/dcpi/london)[ConstraintLocked](https://dchub.cloud/dcpi/london)[Time-to-powerLocked](https://dchub.cloud/dcpi/london) [Power outlook →](https://dchub.cloud/dcpi/london "Power outlook for London") [London market page →](https://dchub.cloud/markets/london) ## Market context NTT Hemel Hempstead 3 Data Center (HH3) is one of 435 facilities DC Hub’s London brief counts on the NGESO grid. The closest tracked facility is NTT Hemel Hempstead 2, under 1 km away. [Read the London market brief →](https://dchub.cloud/markets/london) ## Location Area Hemel Hempstead, GB [Open the approximate area in OpenStreetMap](https://www.openstreetmap.org/#map=14/51.76/-0.44) Approximate area (about 1 km) [Sign in free to see the exact location — 10 sites a month](https://dchub.cloud/signup?next=/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-3-data-center-hh3-d958cd4b) ## Market & grid context Published DC Hub data for this location. LocationHemel Hempstead, GB ## Fiber connectivity Networks recorded as present at or immediately around NTT Hemel Hempstead 3 Data Center (HH3) in public peering records. Treat this as a map of who is *there*, not as a list of contracted cross-connects — availability, diversity and pricing are the operator’s to confirm. NTT Global Data CentersNTT Global IP Networksipsynergy Source: PeeringDB carrier-to-facility records, matched to this site by location. A network listed here may sit in a neighbouring hall or an adjacent building at the same address, so presence is reported for the location rather than for a single suite. ## Power generation nearby DC Hub tracks 119 operating generating units totalling 3,400 MW within about 50 km of Hemel Hempstead, GB. Generation mix shapes both carbon profile and interconnection options for a site at this location. Oil/Gas2,167 MW · 9 units · 64% Utility-Scale Solar758 MW · 84 units · 22% Bioenergy409 MW · 13 units · 12% Wind65 MW · 13 units · 2% Source: Global Energy Monitor unit inventory, operating units only. Counts are units, not plants. ## Other data centers nearby Nearest first, by distance from this site. - [NTT Hemel Hempstead 2](https://dchub.cloud/facilities/ntt-ntt-hemel-hempstead-2-a15f78fc) · NTT · under 1 km - [NTT Hemel Hempstead 2 Data Center (HH2)](https://dchub.cloud/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-2-data-center-hh2-c3661e66) · NTT DATA's Global Data Centers division · under 1 km - [NTT Hemel Hempstead 3](https://dchub.cloud/facilities/unknown-ntt-hemel-hempstead-3-bf655277) · Unknown · under 1 km - [Data Center 989525011](https://dchub.cloud/facilities/data-center-989525011-a4fe417e) · under 1 km - [NTT Hemel Hempstead 1 Data Center (HH1)](https://dchub.cloud/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-1-data-center-hh1-7855647d) · NTT DATA's Global Data Centers division · under 1 km - [NTT Hemel Hempstead 4](https://dchub.cloud/facilities/ntt-hemel-hempstead-4-4efed311) · NTT · under 1 km [Unlock power scores for this site →](https://dchub.cloud/pricing) [Free MCP key (AI agents)](https://dchub.cloud/ai) [Used by Claude & Cursor](https://dchub.cloud/cited-by) **Question this page answers:** What is the operator, status and power context of NTT Hemel Hempstead 3 Data Center (HH3) in Hemel Hempstead, GB? **Answer it live over MCP:** `execute_plan(intent="NTT Hemel Hempstead 3 Data Center (HH3) data center in Hemel Hempstead, GB: operator, status and grid power context")` **Cite as:** DC Hub (dchub.cloud), as of [the as_of date on the result]. Data: DC Hub global infrastructure database · [Raw JSON](https://dchub.cloud/api/v1/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-3-data-center-hh3-d958cd4b) Live grid, fiber & DCPI context for this facility — AI agents: query DC Hub MCP `get_facility slug="ntt-datas-global-data-centers-division-ntt-hemel-hempstead-3-data-center-hh3-d958cd4b"` (endpoint https://dchub.cloud/mcp) for the full cited record. Connect: [https://dchub.cloud/connect](https://dchub.cloud/connect) Schema, units and the population behind every count: [https://dchub.cloud/bind](https://dchub.cloud/bind) ```json { "@context": "https://schema.org", "@type": "Place", "@id": "https://dchub.cloud/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-3-data-center-hh3-d958cd4b#place", "url": "https://dchub.cloud/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-3-data-center-hh3-d958cd4b", "name": "NTT Hemel Hempstead 3 Data Center (HH3)", "description": "Data center facility operated by NTT DATA's Global Data Centers division in Hemel Hempstead, GB. Source: DC Hub (dchub.cloud), CC-BY-4.0.", "identifier": "d958cd4b", "isAccessibleForFree": true, "license": "https://creativecommons.org/licenses/by/4.0/", "address": { "@type": "PostalAddress", "addressLocality": "Hemel Hempstead", "addressCountry": "GB" }, "additionalType": "https://schema.org/DataCenter", "potentialAction": { "@type": "Action", "name": "What is the operator, status and power context of NTT Hemel Hempstead 3 Data Center (HH3) in Hemel Hempstead, GB?", "description": "Ask this question live over MCP with execute_plan(intent=\"NTT Hemel Hempstead 3 Data Center (HH3) data center in Hemel Hempstead, GB: operator, status and grid power context\"). Cite as: DC Hub (dchub.cloud), as of [the as_of date on the result].", "target": { "@type": "EntryPoint", "urlTemplate": "https://dchub.cloud/mcp", "contentType": "application/json", "httpMethod": "POST" } } } { "@context": "https://schema.org", "@type": "Dataset", "@id": "https://dchub.cloud/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-3-data-center-hh3-d958cd4b#dataset", "name": "NTT Hemel Hempstead 3 Data Center (HH3) \u2014 facility intelligence record", "description": "Structured data-center facility record (location, operator, power & connectivity context) for NTT Hemel Hempstead 3 Data Center (HH3).", "url": "https://dchub.cloud/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-3-data-center-hh3-d958cd4b", "license": "https://creativecommons.org/licenses/by/4.0/", "isAccessibleForFree": true, "creator": { "@type": "Organization", "@id": "https://dchub.cloud/#organization", "name": "DC Hub", "url": "https://dchub.cloud" }, "citation": "DC Hub, dchub.cloud", "isBasedOn": { "@type": "CreativeWork", "name": "PeeringDB" }, "variableMeasured": [ { "@type": "PropertyValue", "name": "Lifecycle Status", "value": "Operational", "description": "Operational lifecycle per util/status_taxonomy. A market's 'operational' population is filtered on this field." } ], "spatialCoverage": { "@id": "https://dchub.cloud/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-3-data-center-hh3-d958cd4b#place" }, "distribution": [ { "@type": "DataDownload", "encodingFormat": "application/json", "contentUrl": "https://dchub.cloud/mcp" } ], "potentialAction": { "@type": "SearchAction", "target": { "@type": "EntryPoint", "urlTemplate": "https://dchub.cloud/api/v1/rag/search?q={search_term_string}" }, "query-input": "required name=search_term_string" } } {"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://dchub.cloud/"}, {"@type": "ListItem", "position": 2, "name": "Facilities", "item": "https://dchub.cloud/facilities"}, {"@type": "ListItem", "position": 3, "name": "United Kingdom", "item": "https://dchub.cloud/facilities/in/gb"}, {"@type": "ListItem", "position": 4, "name": "London", "item": "https://dchub.cloud/dcpi/london"}, {"@type": "ListItem", "position": 5, "name": "NTT Hemel Hempstead 3 Data Center (HH3)", "item": "https://dchub.cloud/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-3-data-center-hh3-d958cd4b"}]} {"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "Who operates NTT Hemel Hempstead 3 Data Center (HH3)?", "acceptedAnswer": {"@type": "Answer", "text": "NTT Hemel Hempstead 3 Data Center (HH3) is operated by NTT DATA's Global Data Centers division."}}, {"@type": "Question", "name": "What is the status of NTT Hemel Hempstead 3 Data Center (HH3)?", "acceptedAnswer": {"@type": "Answer", "text": "DC Hub lists NTT Hemel Hempstead 3 Data Center (HH3) as Operational."}}]} ```