High-availability power infrastructure for data centers
N+1 and 2N redundancy, PDUs, high-density distribution and transparent UPS transfers: EOS Électricité works alongside Data Center Operations teams to design power architectures where the SLA can be read directly on the single-line diagram.
A power architecture that materialises the SLA
Data Center Operations teams and technical directors know that data-center infrastructure is sized by availability — not by floor area.
Rack density keeps rising, PUE is monitored, UPS transfers are expected to be transparent: every architectural decision (redundancy, path separation, protection coordination) has a direct impact on the SLA. EOS designs data-center architectures where redundancy is explicit, power paths are independent and coordination with UPS batteries and generators is documented.
Explicit redundancy
N+1, 2N or 2(N+1) depending on criticality, with independent power paths.
Rack density
High-density distribution and PDUs sized for growth.
Energy efficiency
Fine PUE measurement and identified optimisation levers.
What Data Center Operations teams face
Data-center operations managers share four recurring families of constraints.
Transparent transfer
No micro-outage tolerated: UPS, batteries and generators must chain without a hitch.
Rising density
Rack power rising, thermal constraints and evolving PDUs.
PUE and efficiency
Every kW dissipated is a kW paid: fine measurement and continuous optimisation are expected.
Live-room coexistence
Interventions inside a live room with cleanliness and noise constraints.
SLA and electrical continuity in data centers
For a Data Center Operations manager, continuity is not a goal — it is a contractual commitment. The electrical architecture must materialise the SLA through explicit redundancy and controlled transfers.
Operational continuity
Double-conversion UPS and generator transfer with no perceptible outage on the rack side.
MTTR reduction
Rigorous labelling and isolation designed for fast intervention.
N+1 / 2N redundancy
Independent power paths and sources sized with margin.
Planned continuity
Periodic tests, architecture reviews and controlled evolutions.
Backup architecture commonly draws on generators and UPS sized within our emergency power offering: see our continuity offerings.
Data-center electrical engineering skills we bring
Our teams work alongside data-center operators and technical departments.
N+1 / 2N architecture
A/B path design, UPS-generator coordination and fine selectivity.
PDUs and distribution
Busway, intelligent PDUs and high-density per-rack distribution.
Double-conversion UPS
UPS sizing, battery management and transfer scenarios.
PUE and efficiency
Sub-metering, measurement and continuous optimisation paths.
Technical BMS
Energy supervision, alarms and real-time reporting to operations teams.
Typical applications in a data center
Recurring contexts where our engineers step in.
- Server rooms and colocation
- UPS rooms and battery rooms
- Generators and fuel tanks
- High-density rack distribution
- Extensions and repowering of existing infrastructure
Engineering and technical framework for data centers
Designed with consideration for the technical framework applicable to data centers, including principles of N+1 / 2N redundancy, high-density distribution and UPS-generator coordination.
- 01
Redundancy
N+1, 2N or 2(N+1) architectures in line with the targeted availability level.
- 02
Path separation
Independent A/B paths, with no common point of failure on critical loads.
- 03
UPS-generator transfers
Timing coordination and recovery scenarios documented.
- 04
High-density distribution
Busway and PDUs sized in line with load-growth principles.
- 05
Traceability
Architecture documentation and tests made available to operations teams.
Our designs are developed in line with the principles of the applicable regulatory framework. EOS Électricité does not substitute for inspection bodies and does not attest to final compliance, which falls under the verification and commissioning procedures applicable to the project.
EOS solutions mobilised in data centers
Data-center projects commonly rely on these complementary expertises.