The ADC McClellan Park data center is a secure, windowless facility, purpose built by the United States Air Force with steel framed, reinforced concrete tilt-up panels and minimal support columns. The facility is re-designed as a next-generation data center, capable of supporting high power density deployment.
- Highly efficient, “green” data center design
- Capable of cooling 340 watts/sq.ft.
- Customer dedicated infrastructure, operational & design flexibility
- Low Total Cost of Ownership: $0.083/kWh & 35% cooling factor


Situated on the McClellan Air Force Base with on-site security, emergency services and full service airport. Access off Interstate 80. Adjacent to main east-west rail corridor. 90-minute drive from San Francisco.


Being located on a former Air Force Base, LAMBRA, an acronym for "Local Agency Military Base Recovery Area", allows our customers to claim a credit equal to the sales or use tax paid or incurred to purchase up to $20 million of qualified property. Qualified property includes high technology equipment, such as computers and electronic processing equipment.


230,000 sq. ft. which is situated on 9 acres
- 70,000 sq. ft. available
- 160,000 sq. ft. expansion space


Eleven private data center suites. Each suite is approximately 10,000 sq.ft., capable of supporting a critical load of 2.54MW. MEP equipment is dedicated to each customer suite.
- Seismic upgrade of the data center and demolition and recycling of adjacent building completed in September 2008. Substation construction and commissioning completed in October 2008.


Sacramento is a seismic-neutral area (Zone – 3). There have been no recorded earthquakes and there are no known active faults in the Sacramento area. The facility is constructed with a Seismic Importance Factor (SIF) of 1.5, which is substantially above the California Essential Facility standard of 1.25 for critical facilities (fire/police stations, hospitals).


Per USGS survey, the site is located outside of the 500-year flood plain.


USGBC LEED© Platinum pre-certification.


By utilizing energy efficiency strategies such as Air Side Economizers, Hot/Cold Isle and Highly Efficient Chiller and Fan systems, ADC uses 38% less overall energy (to operate the same Critical Load) as industry standard data centers according to the 2003 LBNL Data Center Benchmarking Study. This reduces both the burden on the environment and utility grid, while lowering the total cost of data center ownership.


The ADC McClellan Park data center is served by SMUD, one of the nation's "greenest" utility districts. SMUD’s 2009 Power Mix includes 19% eligible renewable energy (biomass, geothermal, wind, solar), 20% hydroelectric and 60% natural gas. Additionally, customers may elect to receive 100% renewable power under SMUD's Greenergy® program.


Serviced by diverse 69kV feeds from two SMUD substations, this dedicated, ADC-owned 50 MVA (45MW) substation provides unprecedented robustness and redundancy in one of the lowest cost utility districts in the west ($0.083/kWh). Initially built out with two 25 MVA utility-rated transformers, the substation is designed for a future third “swing” transformer to be installed as the demand warrants. This will enable load transfers to accommodate full shutdown of the transformers without utility interruption for maintenance.


Tier III (Tier IV upon request). Minimum N+1 MEP. Designed for maximum efficiency.
- Designed to support alternative cooling (e.g., liquid cooled cabinets) to ensure long term functionality.


Utilizing a distributed redundant architecture with a minimum N +1 configuration, the UPS system has at its heart multiple 2.2 MVA rotary motor-generator units that support the critical load. Initially designed to support 200 watts per square foot, the system has the ultimate flexibility, allowing tenants to add redundancy including dedicated N + 1, as well as 2N + 1 depending on space and design requirements. There are adequate UPS systems to support a total building critical load of 292 watts/sq.ft.


An integrated building air handling system consisting of louvers, intake dampers, cooling coils, humidifiers, filters and an array of multiple fans provides cooling to the data center space. This dedicated air handling system is essentially built into the walls of the building and it provides dedicated systems with internal redundancy for each tenant space. Utilizing an airside economizer to take advantage of seasonal and nighttime outside air variations to cool the space, each system is capable of meeting a load density of 340 watts/sq.ft. Utilizing a combination of pressurized cold aisles and separately enclosed hot aisles, the system provides even distribution of the cold air throughout the critical equipment space eliminating the temperature stratification issues inherent in traditional pressurized raised floor environments. In addition, the site is being designed to accommodate water-cooled cabinets should a customer choose this solution.


The building exterior has been designed to provide a secure environment for both the facility as well as customer equipment. The entire site is fenced creating a hardened perimeter security zone. Parking is provided just outside the security fence and access is controlled through the use of a secure gate with a card and personal identification reader. Visitors must be scheduled and can request access through the gate through an intercom system. Once inside the gate all other access into the building and into various suites is controlled through the use of biometric scanners and PIN code devices. The entire facility is monitored inside and outside with video cameras that are being monitored by security personnel and recorded 24 x 7.


McClellan Park is strategically located to leverage the multitude of carriers providing both wavelength (metro and long-haul) and traditional data/telecommunications services. ADC is committed to maintaining carrier neutrality and diverse options for its client’s connectivity requirements. Tenants will have direct access to the following carriers and service providers: 360, AT&T, Global Crossing, Level3, O1 Communications, Qwest, Sprint, Surewest, Time Warner Telecom, Verizon Business, and XO.


ADC enables its customers to achieve low total cost of ownership by providing a platform that optimizes each component of the electrical and mechanical distribution architecture. This holistic approach results in an industry-leading (low) cooling factor of 35%.

TCO = Metered Power Usage + 35% Cooling Factor + Physical Space