DC
/

CoreSite BO1

OperatingUnclassifiedBuildingSomerville, Middlesex County, Massachusetts
20% profile completeness
14 claims from 5 sources
Current facility power
Not yet sourced
Planned capacity
Not yet sourced
Building footprint
134,000 sq ft[1]
Likelyderived
Buildings (planned)
Not yet sourced
Capital cost / investment
Not yet sourced
First operational
Not yet sourced

POWER & GRID

Time-to-power · verification · interconnection
Time to power
Operating (community-mapped, unverified)
Low confidence
Project verification
Unverified
Evidence is limited to community map.
Current stage
Operational
Furthest stage with documented evidence
Utility · ISO
Nstar Electric Company · ISO-NE
Substation: Unnamed substation (nearest, unverified)

Power reality

Announced
No record
Interconnection request
No record
Contracted / approved
No record
Under construction
No record
Operational
No record
AI evidence brief
Summarizes only the evidence on this page. Answers citing anything else are rejected automatically.

Project verification

Development
  1. Announcedimplied by a later stage
  2. Land acquiredimplied by a later stage
  3. Planning / zoningimplied by a later stage
  4. Permittingimplied by a later stage
Grid interconnection
  1. Interconnection application
  2. Feasibility study
  3. System impact study
  4. Facilities study
  5. Interconnection agreement / service contract
Build & energization
  1. Financing
  2. Under constructionimplied by a later stage
  3. Energizationimplied by a later stage
  4. OperationalSep 27, 2026
    Community map
    • Sep 27, 2026 · Reported status: operating[1]

● documented · ◌ implied by a later stage · ○ no evidence found. Dates are those of the earliest dated evidence, which can be later than when a stage actually began. Evidence classes: Community map.

Grid path

  1. facility
    CoreSite BO1
  2. substation
    Unnamed substation[1]
    Proximity onlyUnverified
    Nearest mapped substation, 0.97 km away. Proximity does not establish that it serves the site.
  3. transmission
    345 kV line[1]
    Proximity onlyUnverified
    Highest-voltage line mapped within 2 km (1.86 km away). Not confirmed as the supply path.
  4. utility
    Nstar Electric Company[2]
    Service territoryLikely
    Retail service territory containing the site
  5. ISO / RTO
    ISO-NE[3]
    Service territoryLikely
    Balancing authority: ISNE
Substation capacity:
not published
Required upgrades:
not yet sourced
Congestion:
not yet sourced (no nodal price data)

Dashed boxes are based on proximity only and do not establish which asset serves the site.

Interconnection records

No interconnection-queue record is linked to this site. Of the ISOs we ingest, only NYISO publishes large-load requests; PJM, ERCOT, MISO, SPP and CAISO queues list generation only.

On-site & dedicated generation

  • Kendall Square Station (Natural Gas, 224 MW) is 1.5 km away[5]
    EIA plant within 1.5 km; proximity does not establish that it supplies the facility
    Natural gasCo-located224 MWUnverified

Location & imagery

Mapped outline
Coordinates
42.37671, -71.07976
Address
70 Inner Belt Road, Somerville, MA 02143[1]Likely
County
Middlesex County
CLLI code
SOVLMAAB[1]Likely
Photographs

No openly licensed ground-level photos matched to this site yet.

Ownership, operation & customers

  1. 1. Property owner of record
    Not identified
  2. 2. Owner / developer
    Not identified
  3. 3. Operator
    Not identified
  4. 4. Tenant / cloud
    Not identified
  5. 5. End customer / workload
    Not identified
Power supply
Utility:
Nstar Electric Company(unreviewed)[2]Unverified

Each link is sourced separately. The property owner of record is often a special-purpose entity; the same company appearing in two roles is shown only when sources say so.

All parties with evidence
Utility
Nstar Electric Company(unreviewed)[2]Unverified

Most likely retail provider among 3 overlapping service territories (largest retail sales; territory polygons are approximate). Also overlapping: Fitchburg Gas & Elec Light CO, Massachusetts Bay Trans Authority.

No tenants or end users identified in our sources yet.

Power (all fields)

Current facility power
Not yet sourced
Planned capacity
Not yet sourced

Capacity figures are nameplate or contracted; annual consumption is a labeled model estimate, not metered data.

Grid & electricity

ISO / RTO
ISO-NE[3]Likelyderived

Location falls inside this ISO/RTO footprint.

Balancing authority
ISNE[2]Likelyderived

Control area of the containing utility territory.

Nearest mapped substation
Unnamed substation[1]Likelyderived

Nearest substation mapped in OpenStreetMap; proximity does not establish which substation serves the site.

Distance to substation
1 km[1]Likelyderived
Highest-voltage line nearby
345 kV[1]Likelyderived

Highest-voltage transmission line mapped within 2 km.

State avg. industrial price
20.25¢/kWh[4]Confirmed

Massachusetts statewide average, July 2026.

State avg. commercial price
24.41¢/kWh[4]Confirmed

Massachusetts statewide average, July 2026.

Generation within 50 km
3.99 GW[5]Confirmedderived

158 EIA-reported plants within 50 km.

Interconnection status
Not yet sourced
Contracted / committed power
Not yet sourced
Nearby infrastructureTypeDistanceVoltage / capacitySource
115 kV line · EversourceTransmission line1.53 km115 kV[1]
0.48 kV line · MassDOTTransmission line1.54 km0.48 kV[1]
345 kV line · EversourceTransmission line1.86 km345 kV[1]
Kendall Square Station · Kendall Green Energy, LLCPower plant (Natural Gas)1.5 km224 MW[5]
Fore River Generating Station · Calpine Fore River Energy Center, LLCPower plant (Natural Gas)17.6 km724 MW[5]
Salem Harbor Power Development LP · Salem Harbor Power Development LPPower plant (Natural Gas)23.4 km675 MW[5]
Exelon Medway LLC · Constellation Power, IncPower plant (Petroleum)40 km123 MW[5]
Exelon West Medway II LLC · Constellation Power, IncPower plant (Natural Gas)40.1 km188 MW[5]
Anp Bellingham Energy Project · Bellingham Power Generation LLCPower plant (Natural Gas)42.7 km533 MW[5]
Milford Power LP · Milford Power LLCPower plant (Natural Gas)44.9 km205 MW[5]
Bellingham Cogeneration Facility · Northeast Energy Associates LPPower plant (Natural Gas)45.9 km264 MW[5]
Unnamed substationSubstation0.97 km—[1]
Prospect Street Substation · EversourceSubstation1.28 km115 kV[1]
Unnamed substationSubstation1.3 km—[1]
East Cambridge Substation · EversourceSubstation1.54 km115 kV[1]
Hampshire Station · EversourceSubstation1.54 km4 kV[1]
Unnamed substationSubstation1.73 km—[1]

Utility, ISO and nearby assets are derived from the site's location. Proximity to a substation or line doesn't establish the interconnection; that needs a utility filing or interconnection-queue record. Queue requests are applications, not commitments — most never reach operation.

Construction & permitting

  1. Announced
    —
  2. Land acquired
    —
  3. Permitting
    —
  4. Construction start
    —
  5. First operational
    —
  6. Expected completion
    —

Real estate

Official assessments
Assessor's value for a tax year

None sourced yet

Recorded transactions
Sale prices from recorded deeds

None sourced yet

Model estimates
Our model — not an appraisal

None sourced yet

Annual property tax
Not yet sourced

No county parcel or assessor records linked yet. County records are currently ingested for Loudoun County, VA and Maricopa County, AZ.

Size

Building footprint
134,000 sq ft[1]Likelyderived

Computed from the mapped OSM building outline.

Floor area
Not yet sourced

What changed (last 3 years)

Follow this facility (RSS)

No tracked changes yet. Values are recorded on every data refresh, so changes will appear here over time.

Timeline

No dated events sourced yet.

All claims (provenance audit)

14
FieldValueSourceConfidenceAs ofStatus
NameCoreSite BO1way/29827954 name=CoreSite BO1[1] Likely2026-09-27Shown
StatusOperating[1] derivedUnverified2026-09-27Shown
Address70 Inner Belt Road, Somerville, MA 02143[1] Likely2026-09-27Shown
CLLI codeSOVLMAAB[1] Likely2026-09-27Shown
UtilityNstar Electric Companyterritory 54913: NSTAR ELECTRIC COMPANY (INVESTOR OWNED, NSTAR ELECTRIC COMPANY)[2] derivedUnverified2022Shown
ISO / RTOISO-NEISO NEW ENGLAND INC.[3] derivedLikely—Shown
Balancing authorityISNE[2] derivedLikely—Shown
Nearest mapped substationUnnamed substationway/160929158[1] derivedLikely2026-09-28Shown
Distance to substation1 km[1] derivedLikely2026-09-28Shown
Highest-voltage line nearby345 kV[1] derivedLikely2026-09-28Shown
State avg. industrial price20.25¢/kWh[4] Confirmed2026-07Shown
State avg. commercial price24.41¢/kWh[4] Confirmed2026-07Shown
Generation within 50 km3.99 GW[5] derivedConfirmed202502Shown
Building footprint134,000 sq ft[1] derivedLikely2026-09-27Shown