Design
Feasibility studies, load analysis, system architecture, technical review and fault investigation—with clear documentation that stands up to scrutiny.
IndependentPower Systems,Engineered forYour Site.
Off-grid, backup and hybrid power systems designed around your site, your loads and your operating needs—not off-the-shelf packages.
What we do
Intelligent power.
Built around you.
SES designs and delivers reliable electrical and energy systems for a wide range of applications. We combine sound engineering, carefully selected equipment and practical installation experience to create a system that works as one.
Need independent advice rather than an installation? SES can work as a standalone technical consultant for developers, contractors, architects and site owners—including confidential and NDA-led projects. Explore consultancy →
35+Years’ electrical experience
15+Years in renewable systems
100+Systems designed & installed
UKBased, nationwide coverage
Installation
Careful installation by qualified engineers, built around operational constraints.
Commissioning
Testing, configuration and a documented handover that makes the system easy to own.
Support
Practical maintenance and technical support to keep critical power available.
Our services
Solutions for every application.
Off-Grid & Backup Power
Resilient generation, storage and control systems for sites where the grid is unavailable, constrained or unreliable.
Learn moreSolar & Battery Storage
Solar PV and energy storage engineered to reduce costs, improve independence and strengthen site resilience.
Learn moreCommercial & Industrial
Three-phase systems, power distribution, generators, UPS and energy management for demanding operations.
Learn moreMarine, Automotive & Bespoke Projects
Specialist electrical systems for unusual environments, mobile applications and projects without a standard answer.
Learn moreFeatured bespoke design
Three-phase workshop power.
Single-phase supply.
The workshop needed three-phase power. The available connection was single phase.
Thomas Howe designed a Victron and Dyness system around that requirement, with separate grid charging, two inverters per phase and battery storage. Starting loads, options for service recovery and future expansion informed the design.
- Three-phase inverter system
- 6 × 5 kVA
- Nominal battery storage
- 40.96 kWh
SES in practice
Backup, solar and off-grid projects.
Explore whole-home backup, garden-workshop solar and storage, and power for a property without a grid connection.
Residential backup
Whole-home backup with Victron & Fogstar
A 10 kVA Victron MultiPlus-II, 48.3 kWh of nominal storage and a manual bypass for servicing when the grid is available.
Design, supply & commissioning
Read the case study
Solar, storage & selected-circuit backup
Victron solar & storage in a garden workshop
A bespoke Victron system working alongside 22 solar panels, with a dedicated backup board for selected circuits.
Integrated with the property’s electrical system
Read the case study
Independent off-grid power
Off-grid power with Victron & Dyness
A 10 kVA Victron inverter, two solar arrays and 20.48 kWh of nominal Dyness storage for a property without a grid connection.
Designed with future inverter expansion in mind
Read the case studyWhy choose SES
Independent. Experienced.
Focused on your outcome.
We are not tied to a single manufacturer. That means every recommendation can be made on engineering merit, whole-life performance and what is right for the site.
Manufacturer-independent advice
Qualified, experienced engineers
Systems shaped around the site
Clear documentation and handover
One team from concept to support
Ready to discuss your project?
Let’s design the right solution for your site.
Tell us what needs to stay powered, where the project is and what is getting in the way. We’ll help you define the next sensible step.
Get in touch