# Digital Realty SFO12 Data Center (365 Main Street)

CAISO data center · https://askthegrid.com/assets/facilities/digital-realty-sfo12-data-center-365-main-street--grid-load-b5b8290002afe2b8

Digital Realty's SFO12 is a colocation data center at 365 Main Street in San Francisco, in a six-level building of 227,000 square feet that began as a military tank assembly plant. The company factsheet lists 8.6 MW of critical IT power load. The San Francisco Public Utilities Commission has supplied its electricity since December 2017, replacing PG&E. An earlier tour report gave a 13.6 MW IT load.

## Identity and location

- Operating status: operating
- Asset scope: building
- Location: 365 Main Street, San Francisco, San Francisco County County, CA
- Operator: Digital Realty (exact asset)
- Owner: Digital Realty (exact asset)
- Developer: AboveNet (exact asset)

## Power and grid context

- Critical it load: 8.6 MW · reported · exact asset — Critical IT power load in the company factsheet
- Reported it power: 13.6 MW · reported · exact asset — IT load reported in an earlier tour report
- Backup generation: 2.1 MW · reported · exact asset — Rating of each of ten generators reported in an earlier root-cause analysis
- ISO/RTO: CAISO
- Electric utility: San Francisco Public Utilities Commission

## Development

- Construction: Built as a military tank assembly plant in 1940 and renovated in 2002 as a 227,000 square foot facility

## Compute and operations

- Critical IT load: 8.6 MW

## Sources

- [Digital Realty Powers San Francisco Data Center With Renewable Energy](https://www.datacenterknowledge.com/sustainability/digital-realty-powers-san-francisco-data-center-with-renewable-energy)
- [SFO12 Data Center | 365 Main Street | Digital Realty](https://www.digitalrealty.com/data-centers/americas/silicon-valley/sfo12)
- [What Can We Learn from 365 Main Street? - NAI NorCal](https://nainorcal.com/what-can-we-learn-from-365-main-street/)
- [Just a moment...](https://www.datacenterdynamics.com/en/news/365-main-offers-transparency-with-detailed-root-cause-analysis-of-power-outage/)
- [AboveNet: San Francisco - Enclos](https://enclos.com/project/abovenet-san-francisco/)
- [Generator Failures Caused 365 Main Outage](https://www.datacenterknowledge.com/outages/generator-failures-caused-365-main-outage)
- [Digital Realty Trust Completes Acquisition of Rockwood Capital/365 Main Portfolio](https://www.prnewswire.com/news-releases/digital-realty-trust-completes-acquisition-of-rockwood-capital365-main-portfolio-98405574.html)
- [https://geocoding.geo.census.gov/geocoder/geographies/onelineaddress?address=365+Main+Street%2C+San+Francisco%2C+CA%2C+94105&benchmark=Public_AR_Current&vintage=Current_Current&format=json](https://geocoding.geo.census.gov/geocoder/geographies/onelineaddress?address=365+Main+Street%2C+San+Francisco%2C+CA%2C+94105&benchmark=Public_AR_Current&vintage=Current_Current&format=json)
- [https://newserverlife.com/upload/iblock/303/DS_Digital_Realty_2308_SFO12_Property_Factsheet_EN.pdf](https://newserverlife.com/upload/iblock/303/DS_Digital_Realty_2308_SFO12_Property_Factsheet_EN.pdf)
- [Taking Earthquake Protection to the Next Level in Data Centers | Data Center Frontier](https://www.datacenterfrontier.com/design/article/11429341/taking-earthquake-protection-to-the-next-level-in-data-centers)

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Canonical page: https://askthegrid.com/assets/facilities/digital-realty-sfo12-data-center-365-main-street--grid-load-b5b8290002afe2b8
Profile generated: 2026-11-02T18:59:08.191135Z
Source: Ask the Grid — https://askthegrid.com/