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CRIT / Critical power

Critical power

Multi-layer resilience that coordinates fast ride-through with sustained backup and safe transfer logic.

01 / Critical power

Find your configuration

Start with your actual energy needs. These are design pathways; site conditions determine equipment, capacity and functions.

System configuration / 01

Healthcare: protect by load class

Separate life-support, clinical, IT and building loads; define permitted interruptions, autonomy and maintenance paths for each.

Discuss this configuration
System configurationApplicable supply paths + UPS + standby generation + optional BESS + monitoring

Design consideration

General-purpose storage is not a direct replacement for medical critical-load UPS. Qualified engineers must verify local healthcare requirements.

02 / SYSTEM LOGIC

How the system works together

SYSTEM FLOW / CONCEPT

Understand where power comes from — and where it goes

Explain the solution by operating state, not just equipment. The key questions: how it charges by day, supplies at night, and protects loads during local or citywide outages.

01Grid / generator

Normal source and long-duration support

02UPS / storage

Ride-through and energy dispatch

03Critical loads

Protected by load class

Day charging

Grid supplies power; UPS supports critical load quality, while storage follows the energy strategy.

Conceptual flow, not an electrical single-line diagram. Wiring, protection and transfer performance require project design and testing.
01Grid

Establishes supply paths and load priorities.

02UPS

Protects power quality and bridges sensitive loads.

03BESS

Supports energy or peaks within the verified design.

04Generator

Extends supply subject to fuel and service conditions.

05Supervisory EMS

Coordinates states and alarms; dedicated protection remains separate.

Functional overview · wiring, protection and equipment follow the project design.

01

Immediate continuity · UPS

Provide power quality and bridging for designated interruption-sensitive loads, verified against the selected UPS architecture.

02

Sustained supply · storage & generation

Storage may support energy or peak control; generators supply longer-duration demand. Validate starting, transfer and recharge states.

03

Coordination · protection & control

Protection isolates faults; controls supervise state and interlocks. EMS must not replace dedicated safety protection.

03 / ENGINEERING BASIS

What to confirm before sizing

Prepare your project brief
01

Permitted interruption

Define it per circuit, rather than claiming zero interruption for a building. Include IT, controls, lifts, pumps and cooling.

02

Fault & maintenance states

Review single failures, bypass, redundancy and maintenance operations. Fault response and normal outage transfer require distinct tests.

03

Acceptance & operational ownership

Agree tests for loaded transfer, generator-start failure, communication loss and grid restoration, plus alarm and exercise ownership.

Configuration & evidence

Configuration notes and conditions

Healthcare: protect by load class Separate life-support, clinical, IT and building loads; define permitted interruptions, autonomy and maintenance paths for each. Applicable supply paths + UPS + standby generation + optional BESS + monitoring General-purpose storage is not a direct replacement for medical critical-load UPS. Qualified engineers must verify local healthcare requirements.

Data centres: continuity & maintenance Assess IT and cooling together, including redundant supply paths, maintenance bypass and single points of failure. Distribution paths + UPS + generators + optional storage + facility monitoring Storage equipment alone does not establish a Tier classification or availability target; certification and validation are separate.

Institutions: sustained backup Prioritise communications, emergency coordination, laboratories and refrigeration so limited stored energy serves essential operations first. Critical circuits + UPS/storage + generator coordination + load shedding Duration also depends on fuel logistics, maintenance capability and generator availability.

Permitted interruption: Define it per circuit, rather than claiming zero interruption for a building. Include IT, controls, lifts, pumps and cooling.

Fault & maintenance states: Review single failures, bypass, redundancy and maintenance operations. Fault response and normal outage transfer require distinct tests.

Acceptance & operational ownership: Agree tests for loaded transfer, generator-start failure, communication loss and grid restoration, plus alarm and exercise ownership.

SYSTEM FLOW / CONCEPT

Understand where power comes from — and where it goes

Explain the solution by operating state, not just equipment. The key questions: how it charges by day, supplies at night, and protects loads during local or citywide outages.

01Grid / generator

Normal source and long-duration support

02UPS / storage

Ride-through and energy dispatch

03Critical loads

Protected by load class

Day charging

Grid supplies power; UPS supports critical load quality, while storage follows the energy strategy.

Conceptual flow, not an electrical single-line diagram. Wiring, protection and transfer performance require project design and testing.

LoadStor / DELIVERY

A documented path to handover

01 / Define requirements

Record location, bills, loads, outages and expansion plans in a reviewable requirements brief.

02 / Agree the design

Agree the single-line diagram, compatibility, sizing basis, operating strategy, scope and assumptions.

03 / Verify & commission

Test protection, communications, charge/discharge, backup transfer and recovery within the agreed scope; retain records.

04 / Handover & service

Hand over as-built records, warranties, training, alarm procedures and maintenance plans; service scope is contract-specific.

05 / FAQ

Questions worth asking

How do BESS and UPS differ?

BESS commonly serves energy management and backup; UPS addresses load power quality and continuity. Functional overlap depends on specific products and whole-system validation.

Can uninterrupted supply be guaranteed absolutely?

Reliability needs explicit boundaries, failure assumptions and maintenance conditions. Agree targets and validation rather than treating a device specification as a site-wide guarantee.

Project intake

Define the first system boundary.

A concise brief is enough. Your submission is stored securely and assigned a reference ID for follow-up.

LoadStor / CONSULTATION

Tell us what needs power.

No equipment model or battery size needed. Start with your setting and contact details.

Or contact us directly

Have a detailed brief? Open the full project form