Battery Storage for Commercial Buildings

Sophisticated by Design. Simple to Install. Engineered by Pretium Synergy.

Control costs, stabilise operations, and unlock new revenue streams with Commercial & Industrial Battery Energy Storage Systems (BESS) engineered specifically for UK commercial buildings. BESS stores electricity during lowcost periods or from solar PV, then discharges when prices peak — reducing bills, shaving demand and improving energy resilience.

Today’s advanced EMSdriven BESS systems automate charge/discharge behaviour using forecasting of load, solar, and pricing — truly hands-free optimisation.

Why now? UK non-domestic electricity prices remain elevated and volatile. Strategic loadshifting and peakshaving can cut energy costs by 10–30% for suitable sites, with additional value available from flexibility markets.

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Commercial battery energy storage system (BESS) installation for UK commercial building

Why C&I Battery Storage (BESS)?

Cut Peak Costs & Smooth Demand

Charge when tariffs are low; discharge at expensive peak windows (e.g. late afternoon). Reduce DUoS Red-Band charges and transmission related demand costs.

Maximise Solar SelfConsumption

Store surplus PV instead of exporting at lower SEG rates. Use stored energy in evenings, shift transitions, or weekends to lift on-site utilisation.

Improve Resilience

Provide support for critical loads during voltage dips, fluctuations or short outages — offering UPS like capability (design dependent).

Generate Revenue from Flexibility Markets

Participate in frequency response, reserve and balancing markets to earn revenue in addition to savings — “revenue stacking.”

Compelling ROI

With falling storage costs and smarter EMS optimisation, 4–10 year paybacks are increasingly achievable.

Sophistication in Design

Pretium Synergy ensures your BESS is right-sized and right-tuned. We align battery power (kW) and energy (kWh) with:

Operational load profile

Time-of-use tariff structure

Solar generation profile (if present)

Import/export capacity limits

Commercial priorities (savings, resilience or revenue generation)

Core Design Features

Peak-Shave Set-Points

Clip high-value demand spikes while keeping operations stable.

Arbitrage Windows

Charge off-peak (night/weekend); discharge during expensive periods.

Solar Coupling (AC or Hybrid)

Raise self-consumption and reduce export dependency.

Flexibile Scheduling

Reserve capacity for frequency response or reserve services if revenue stacking is desired.

Preferred Chemistry

Chosen for safety, cycle life, stability and commercial suitability. Managed by robust BMS + EMS.

We Design, Install and Maintain Your Entire BESS Solution

1. Survey & Analysis

Load study to understand operational profiles
Tariff mapping to model peak-shaving & arbitrage value
Solar generation review (if applicable)
Site review for plantroom, indoor cabinet, or outdoor container siting
Electrical interconnection feasibility assessment (LV or HV)

2. System Design

You receive multiple engineered system options comparing:
System sizing (kW / kWh)
Cost and payback differences
Performance under real load scenarios
Solar-coupled vs grid-only configurations
Revenue-stacking vs savings-only operation
Safety by design
Scalable modular architecture

3. Approvals & Compliance

All regulatory, safety and documentation requirements handled by us:
DNO approval (G99/G100) for grid-connected BESS
Assistance with SEG export registration if exporting via hybrid setups
Safety compliance documentation
Fireservice labelling and emergency access mapping
Coordination with insurers, facilities managers and stakeholders

4. Professional Installation

Installed by commercial-grade engineers trained in battery, HV/LV, and EMS integrations.
Minimal-disruption installation for operational sites
Modular cabinet or containerised deployment
High-quality electrical installation & safety protocols

5. Commissioning & Warranty

Your system is fully validated before handover.
Technical testing, commissioning & performance verification
Warranty activation for BESS, PCS and EMS components
Digital Handover Pack
On-Site Training Session

6. Ongoing Care

Long-term performance management from Pretium Synergy:
Remote monitoring & alerts
Scheduled preventative maintenance
Rapid-response fault resolution
EMS optimisation updates
Annual performance review
Flexibility-market operational support (if used)

Where BESS Delivers the Most Value

Warehousing & LogisticsForklift charging, HVAC peaks, shift transitions — BESS smooths demand and reduces costs for busy logistics hubs.

Manufacturing & Food/DrinkProcess spikes, refrigeration cycles, compressed air loads — BESS delivers stability and savings for energy-intensive sites.

Retail, Hospitality & OfficesEvening HVAC/lighting peaks, uptime requirements — BESS ensures comfort, reliability, and cost control.

Solar-Rich SitesStore excess PV, avoid low-value export — BESS maximises on-site solar self-consumption and ROI.

Costs & Returns (Guide)

Installed costs (2026):

£400–£700/kWh(lower at scale)

Indicative payback:

4–8 years(faster with solar coupling &
grid-service revenue)

ROI depends on

load, tariffs, solar generation, connection limits and market participation.

Safety, Compliance & Longevity

Safety-first LFP chemistry, certified enclosures & fire detection/suppression.

EMS keeps state-of-charge in optimal band to limit degradation.

Market-ready metering & interfaces for export and flexibility participation.

What You Get With Pretium Synergy

Design → Install → Maintain: one accountable partner
Hands-Free EMS Optimisation
Full Documentation: commissioning, warranties, monitoring setup
Market Onboarding Support (optional)
FutureProof Architecture for solar, EVs, heat pumps & load growth

Ready to Take Control of Your Energy Costs & Resilience?Pretium Synergy engineers battery-storage systems that deliver measurable financial, operational and carbon-saving benefits.