--- description: Operational data center at Blossom Way, Hemel Hempstead, United Kingdom, operated by NTT, on the NGESO grid. 3,438 MW of operating generation within 50 km. title: NTT Hemel Hempstead 4 — 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 4 # NTT Hemel Hempstead 4 - Operator NTT - Street Blossom Way - Status Operational [Hemel Hempstead, GB](https://dchub.cloud/dcpi/london) **NTT Hemel Hempstead 4** is a data center operated by NTT in Hemel Hempstead, GB. The facility is currently operational. Status Operational City Hemel Hempstead [Country GB](https://dchub.cloud/facilities/in/gb) Source: OpenStreetMap · Added Jul 29, 2026, not re-checked since · 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 4 is one of 435 facilities DC Hub’s London brief counts on the NGESO grid. The closest tracked facility is Data Center 989525011, under 1 km away. [Read the London market brief →](https://dchub.cloud/markets/london) ## Location Street Blossom Way Area Hemel Hempstead, GB [Open the approximate area in OpenStreetMap](https://www.openstreetmap.org/#map=14/51.76/-0.43) Approximate area (about 1 km) [Sign in free to see the exact location — 10 sites a month](https://dchub.cloud/signup?next=/facilities/ntt-hemel-hempstead-4-4efed311) ## Market & grid context Published DC Hub data for this location. LocationHemel Hempstead, GB ## Power generation nearby DC Hub tracks 118 operating generating units totalling 3,438 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 · 63% Utility-Scale Solar796 MW · 83 units · 23% 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. - [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 Data Center (HH4)](https://dchub.cloud/facilities/ntt-datas-global-data-centers-division-ntt-hemel-hempstead-4-data-center-hh4-a8679748) · NTT DATA's Global Data Centers division · under 1 km - [OSM DC 989525011](https://dchub.cloud/facilities/unknown-osm-dc-989525011-ec1fb78b) · Unknown · under 1 km - [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 [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 4 in Hemel Hempstead, GB? **Answer it live over MCP:** `execute_plan(intent="NTT Hemel Hempstead 4 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-hemel-hempstead-4-4efed311) Live grid, fiber & DCPI context for this facility — AI agents: query DC Hub MCP `get_facility slug="ntt-hemel-hempstead-4-4efed311"` (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-hemel-hempstead-4-4efed311#place", "url": "https://dchub.cloud/facilities/ntt-hemel-hempstead-4-4efed311", "name": "NTT Hemel Hempstead 4", "description": "Data center facility operated by NTT in Hemel Hempstead, GB. Source: DC Hub (dchub.cloud), CC-BY-4.0.", "identifier": "4efed311", "isAccessibleForFree": true, "license": "https://creativecommons.org/licenses/by/4.0/", "address": { "@type": "PostalAddress", "streetAddress": "Blossom Way", "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 4 in Hemel Hempstead, GB?", "description": "Ask this question live over MCP with execute_plan(intent=\"NTT Hemel Hempstead 4 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-hemel-hempstead-4-4efed311#dataset", "name": "NTT Hemel Hempstead 4 \u2014 facility intelligence record", "description": "Structured data-center facility record (location, operator, power & connectivity context) for NTT Hemel Hempstead 4.", "url": "https://dchub.cloud/facilities/ntt-hemel-hempstead-4-4efed311", "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": "OpenStreetMap" }, "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-hemel-hempstead-4-4efed311#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 4", "item": "https://dchub.cloud/facilities/ntt-hemel-hempstead-4-4efed311"}]} {"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "Who operates NTT Hemel Hempstead 4?", "acceptedAnswer": {"@type": "Answer", "text": "NTT Hemel Hempstead 4 is operated by NTT."}}, {"@type": "Question", "name": "What is the status of NTT Hemel Hempstead 4?", "acceptedAnswer": {"@type": "Answer", "text": "DC Hub lists NTT Hemel Hempstead 4 as Operational."}}]} ```