Power Infrastructure Studio
Never let a power outage take your business offline
Why It Matters
The True Cost of Power Failure
Power Cuts
Uganda's grid averages 8-12 power interruptions per month. Each one takes your systems offline until backup kicks in — if you have any.
Equipment Damage
Voltage spikes and dirty power silently degrade servers, networking gear, and storage — leading to premature hardware failure.
Data Loss
An unexpected shutdown during a write operation can corrupt databases, lose transactions, and destroy hours of work.
UPS Technology
Understanding UPS Types
Not all UPS systems are created equal. The right choice depends on your power quality needs, equipment sensitivity, and budget.
Standby UPS
Offline UPS
The simplest and most affordable UPS topology. Power from the utility passes directly to the equipment. When a power failure is detected, the UPS switches to battery power via an inverter.
How It Works
Normal power flows directly from mains to equipment. During an outage, the UPS switches to battery in under 10 milliseconds.
Transfer Time
<10ms
Power Range
300VA – 1500VA
Best For
Home offices, desktop PCs, routers, POS terminals, non-critical equipment
Advantages
- Most affordable option
- Simple design, low maintenance
- Ideal for non-critical loads
- Low heat generation
Limitations
- No voltage regulation
- Brief transfer time (4-10ms)
- Not suitable for sensitive equipment
- Output is simulated sine wave
Line-Interactive UPS
AVR UPS
Features Automatic Voltage Regulation (AVR) that boosts or buckles incoming voltage without switching to battery. This extends battery life and provides better protection than standby models.
How It Works
AVR continuously monitors and corrects voltage fluctuations. Only switches to battery during complete power failure or extreme voltage conditions.
Transfer Time
2-4ms
Power Range
750VA – 5000VA
Best For
Small servers, networking equipment, workstations, VoIP systems, branch offices
Advantages
- Automatic voltage regulation (AVR)
- Longer battery life than standby
- Handles brownouts and surges
- Good balance of cost and protection
Limitations
- Minor transfer time (2-4ms)
- Still uses inverter during outages
- Less clean power than online
- Limited scalability
Online Double-Conversion UPS
Constant UPS
The gold standard of UPS technology. Continuously converts incoming AC to DC and back to AC, providing complete electrical isolation from power anomalies. Zero transfer time means uninterrupted power.
How It Works
AC→DC→AC double conversion. Equipment is always powered by the inverter, which is always connected to the battery. Mains power merely keeps the battery charged.
Transfer Time
0ms
Power Range
1kVA – 800kVA
Best For
Data centers, server rooms, medical equipment, telecommunications, industrial automation
Advantages
- Zero transfer time
- Complete power conditioning
- Output is pure sine wave
- Ideal for sensitive/ritical equipment
Limitations
- Higher cost
- More heat generation
- Lower efficiency (88-94%)
- Requires more cooling capacity
Modular UPS
Scalable UPS
Rack-based, hot-swappable UPS modules that can be added or removed without powering down the system. Designed for data centers that need N+1 redundancy and 99.9999% uptime.
How It Works
Multiple UPS modules operate in parallel. If one module fails, others automatically take over. New modules can be added while the system is running.
Transfer Time
0ms
Power Range
10kVA – 1200kVA+
Best For
Hyperscale data centers, colocation facilities, cloud providers, enterprise IT
Advantages
- Hot-swappable — no downtime
- Scales with your growth
- N+1 redundancy built in
- Pay-as-you-grow economics
Limitations
- Highest upfront cost
- Requires rack space
- Complex initial configuration
- Needs specialized maintenance
Sizing Guide
UPS Sizing Guide
Choosing the right UPS size ensures adequate runtime and protection without overspending.
Load Calculation Formula
Watts ÷ Power Factor = VA Rating Needed
Example: 5000W ÷ 0.8 (PF) = 6250VA → Choose a 6000VA or 8000VA UPS
Runtime Requirements
15 minutes
Use case: Quick shutdown, generator startup
Recommendation: Standard battery capacity
30 minutes
Use case: Extended operations during outage
Recommendation: Extended battery pack
60 minutes
Use case: Full independence from mains
Recommendation: External battery module (EBM)
Battery Types
VRLA (Valve-Regulated Lead-Acid)
life
3-5 years
weight
Heavy (10-15 kg per 12V block)
maintenance
Quarterly testing, annual inspection
cost
Baseline (1x)
temperature
Best at 20-25°C, degrades above 30°C
recovery
Full recharge in 4-6 hours
Lithium-Ion (LiFePO4)
life
8-10 years
weight
Light (2-4 kg per module)
maintenance
Minimal — self-monitoring BMS
cost
2.5-3x VRLA upfront
temperature
Operates at 0-40°C
recovery
Full recharge in 1-2 hours
Common Equipment Power Consumption
| Device | Power (W) | VA Rating | 30-min Runtime |
|---|---|---|---|
| Desktop PC | 200-400W | 250-500VA | 1x 1500VA |
| Server (1U) | 300-600W | 375-750VA | 1x 1500VA |
| Server (2U) | 500-1000W | 625-1250VA | 1x 2000VA |
| Network Switch (24-port) | 30-100W | 40-125VA | 1x 1000VA |
| Network Switch (48-port) | 100-300W | 125-375VA | 1x 1500VA |
| Wireless Access Point | 10-25W | 12-30VA | Shared UPS |
| NAS Storage (4-bay) | 50-150W | 60-190VA | 1x 1500VA |
| Monitor (24-inch) | 25-50W | 30-65VA | Shared UPS |
| Fiber ONT | 10-20W | 12-25VA | Shared UPS |
| VoIP Phone | 5-15W | 6-20VA | Shared UPS |
| Mini Split AC (Server Room) | 1000-3000W | 1250-3750VA | Dedicated circuit |
| Printer (Laser) | 300-800W | 375-1000VA | 1x 2000VA |
Transfer Switches
Automatic Transfer Switches (ATS)
The bridge between your UPS and generator — ATS ensures seamless power source transitions without manual intervention.
How ATS Works
Mains Power Active
Normal utility power feeds the primary input of the ATS.
Power Failure Detected
ATS monitors voltage and frequency. When parameters fall outside acceptable range, it signals the generator.
Generator Starts
Generator receives start signal and ramps up to stable voltage/frequency (typically 5-15 seconds).
Transfer to Generator
ATS switches load from mains to generator once power is stable.
Mains Restored
When utility power returns, ATS waits for stability, then transfers back and signals generator shutdown.
Transfer Time Options
100ms
Fast ATS — suitable for most IT loads with online UPS
Best for: Data centers, server rooms
200ms
Standard ATS — acceptable with line-interactive UPS buffer
Best for: Offices, commercial buildings
500ms
Delay ATS — allows generator to stabilize before transfer
Best for: Industrial, heavy equipment
ATS vs Manual Transfer Switch
| Feature | Automatic (ATS) | Manual |
|---|---|---|
| Transfer Speed | Automatic (milliseconds) | Manual (minutes) |
| Operator Required | No | Yes |
| Remote Operation | Yes (with monitoring) | No |
| Reliability | 99.99% | Human-dependent |
| Cost | Higher upfront | Lower upfront |
| Best For | Critical IT infrastructure | Non-critical loads |
Power Distribution
Power Distribution Units (PDUs)
PDUs distribute UPS power to individual devices. The right PDU gives you visibility, control, and management capabilities.
Basic PDU
Reliable power distribution with no monitoring or switching capability. Simply distributes power from a UPS to multiple devices.
- Multiple outlet configurations
- Locking IEC and NEMA outlets
- Rack-mount (1U/2U) or floor-standing
- Surge protection built-in
Best For: Simple environments where remote monitoring is not required
Metered PDU
Adds current monitoring at the PDU level. Displays real-time load to prevent overloads and help plan capacity.
- LCD or LED current display
- Per-circuit or per-outlet monitoring
- Threshold alarms for overloads
- Network connectivity for remote viewing
Best For: Environments needing visibility into power consumption and load balancing
Switched PDU
Remote outlet-level power control. Turn individual outlets on/off from a web interface or SNMP manager.
- Individual outlet switching
- Remote reboot of frozen devices
- Scheduled power cycling
- User access control per outlet
Best For: Remote sites, unattended data centers, environments needing remote device reboot
Intelligent PDU
Full-featured with per-outlet metering, switching, and environmental monitoring. The most comprehensive power management solution.
- Per-outlet power metering
- Remote outlet switching
- Temperature/humidity sensors
- Water leak detection
- Contact closure inputs
- SNMP/REST API integration
Best For: Enterprise data centers, colocation, environments requiring full power visibility and control
Surge Protection
Surge Protection Devices (SPDs)
A layered approach to surge protection shields your equipment from lightning, utility switching, and internal transients.
SPD
Type 1
Service Entrance Protection
Installed at the main electrical panel where service enters the building. Protects against direct lightning strikes and large external surges.
Location
Main distribution board / service entrance
Protects Against
Lightning, utility switching, direct strikes
SPD
Type 2
Distribution Protection
Installed at sub-distribution panels. Protects against residual surges that pass Type 1 protection and internally generated surges.
Location
Sub-distribution panels
Protects Against
Residual surges, switching transients, motor startup
SPD
Type 3
Point-of-Use Protection
Installed at the outlet or power strip level. Provides final protection for sensitive electronics against small residual surges.
Location
Equipment power strips / wall outlets
Protects Against
Small transients, EMI/RFI filtering
Earthing / Grounding Best Practices
Server Room Design
Server Room Power Design
A properly designed server room power architecture eliminates single points of failure and ensures maximum uptime.
A+B Power Feeds
Two independent power feeds to each rack. If Feed A fails, Feed B maintains power. Each feed connects to a separate UPS system.
Dual UPS Systems
Two UPS units operating in parallel or with automatic transfer. Eliminates single point of failure in the power chain.
Generator Integration
Standby generator with automatic transfer switch provides extended runtime beyond battery capacity. Typically fueled by diesel or natural gas.
Power Monitoring & Alerts
Real-time monitoring of power consumption, UPS status, battery health, and environmental conditions with automatic alerting.
Redundancy Levels
N
Basic — no redundancy. Single UPS, single feed.
Uptime: 99.9%
N+1
One extra UPS module beyond required capacity.
Uptime: 99.99%
2N
Full redundancy — two independent systems.
Uptime: 99.999%
2N+1
Full redundancy plus one extra module.
Uptime: 99.9999%
Battery Technology
Battery Technology Comparison
Choosing the right battery technology impacts runtime, maintenance costs, and total cost of ownership.
Valve-Regulated Lead-Acid
VRLA
Lifespan
3-5 years
Weight
Heavy
Maintenance
High
Cost
Low
Pros
- Low upfront cost
- Widely available
- Proven technology
- Recyclable
Cons
- Frequent maintenance required
- Sensitive to temperature
- Heavy and bulky
- Shorter lifespan
Lithium Iron Phosphate (LiFePO4)
Lithium-Ion
Lifespan
8-10 years
Weight
Light
Maintenance
Minimal
Cost
High
Pros
- 2-3x longer lifespan
- Lightweight and compact
- Built-in BMS monitoring
- Fast recharge
Cons
- Higher upfront cost
- Requires compatible chargers
- Recycling infrastructure limited
- Cell-level monitoring needed
How It Works
Our 5-Step Power Protection Process
Load Assessment
We audit your entire electrical load — servers, networking gear, cooling, lighting — to determine exact power requirements.
UPS Selection
Engineers recommend the right UPS technology (online, line-interactive) and capacity based on your runtime requirements.
Installation
Technicians install UPS systems, transfer switches, PDU distribution, and battery banks with proper ventilation and monitoring.
Testing
Full load testing, transfer testing, and battery discharge verification — documented with performance reports.
Maintenance
Scheduled battery tests, firmware updates, and load audits keep your power infrastructure performing at peak reliability.
What's Included
Complete Power Protection
UPS systems, power distribution, and maintenance — built for reliability.
ROI Analysis
Power Protection That Pays Off
Unplanned Downtime
Seamless battery backup eliminates downtime from power interruptions.
Equipment Protection
Online UPS cleans power and eliminates voltage spikes that destroy hardware.
Compliance Ready
Meet regulatory requirements for power protection in finance, healthcare, and government.
Before & After
The Transformation
Before
- No backup power — every outage halts operations
- Servers shutting down abruptly during power cuts
- Expensive hardware replacements from power damage
- No visibility into power quality or consumption
After
- Seamless switchover to battery in <10ms
- Clean, conditioned power for all critical systems
- Extended equipment lifespan with power protection
- Real-time monitoring of power status and battery health
Case Study
Nakasero Office Block Power Protection
Nakasero, Kampala
Challenge
A financial services company with 8 servers and 3 networking racks had no UPS protection. Monthly power cuts caused 4-6 hours of downtime, database corruption incidents, and $15,000 in annual hardware replacements.
Solution
Backspace installed a 20kVA online UPS with 30-minute runtime at full load, 8 rack PDUs for individual circuit protection, and a battery monitoring system. Generator integration was planned for Phase 2.
Results
- Zero unplanned downtime since installation
- Database corruption incidents dropped from monthly to zero
- Hardware replacement costs reduced by 90%
- Staff can now work through power cuts without interruption
FAQ
Common Questions
What size UPS do I need?
It depends on your total load and desired runtime. A typical office server room (10-15kW) needs a 20-30kVA UPS for 15-30 minutes of runtime. We'll calculate your exact needs during the assessment.
How long do UPS batteries last?
Standard VRLA batteries last 3-5 years. Lithium-ion batteries last 8-10 years. We recommend battery replacement schedules and offer battery monitoring as part of our maintenance packages.
Can you integrate with my existing generator?
Yes. We configure automatic transfer switches (ATS) that seamlessly switch between UPS battery and generator power. This gives you minutes of battery runtime while the generator starts up.
What's the difference between online and line-interactive UPS?
A line-interactive UPS uses AVR to correct voltage fluctuations without switching to battery. An online double-conversion UPS continuously converts power, providing zero transfer time and complete electrical isolation. Online is better for critical equipment; line-interactive is more cost-effective for less critical loads.
Do I need surge protection if I have a UPS?
Yes. UPS units handle brief outages and minor voltage issues, but dedicated surge protection devices (SPDs) are needed to protect against lightning strikes and high-energy surges that can damage both the UPS and connected equipment. We recommend a layered approach: Type 1 at the service entrance, Type 2 at distribution panels, and Type 3 at point-of-use.
Ready to Protect Your Infrastructure?
Get a free power assessment and custom UPS solution for your business.