Commercial Solar PV
Solar, properly assessed and delivered
You've decided to install solar. The challenge is making sure the system is correctly sized, safely designed, compliant, and delivered without becoming a project you have to manage yourself.
Pretium Synergy takes an owner's-engineer approach: we assess your site, design the right system, and deliver it — under one fixed-price scope, as your single accountable partner.
The challenge
Why this needs rigour, not just a quote
Commercial solar fails on the things a quick quote skips over: whether the roof can actually take the load, whether the array is sized to your real demand rather than your available space, whether DNO approval is secured before you commit capital, and whether fire, structural, and electrical safety are designed in from the start rather than bolted on at handover.
Pretium Synergy manages these so you don't have to become a structural engineer, a grid specialist, and a project manager to get solar installed properly.
How we work
Assess → Design → Deliver → Support
01
Assess
Site conditions, roof structure, electricity usage, and your demand profile — not a generic size based on roof area.
02
Design & approve
A site-specific design covering layout, mounting, inverters, and protection — with structural calculations, fire safety, and DNO application (G98/G99) handled as part of the scope, not an afterthought discovered mid-project.
03
Deliver
Installation under one fixed-price contract. We manage our own team and vetted subcontractors as the work requires — you deal with one company throughout.
04
Support
Commissioning, certification, monitoring, and an agreed support period beyond switch-on.
Business case
Sized to your demand, not your roof
The value of commercial solar comes from self-consumption — a system that exports too much of what it generates returns less than one properly matched to how your site actually uses power. Our business case for your site covers demand and generation modelling, realistic payback, and where storage would genuinely improve returns rather than being sold as a default add-on.
Where more than one approach is viable — rooftop versus carport, with or without storage — we don't hand you a spec sheet and leave you to decide. We tell you which option we'd choose, and why.
Grid connection
Solved before it becomes a problem
No commercial system operates without DNO approval, and this is where projects most often stall. We handle the G98/G99 route, manage the technical studies and export limitations, and flag any required grid reinforcement early — before procurement, not after. If reinforcement falls outside the agreed scope, that's identified transparently and agreed through a clear change process, not discovered as a surprise on invoice.
Safety
Engineered in
Rooftop PV carries specific structural, electrical, and fire-safety risks that need resolving at design stage, not fixing after the fact. We work to Solar Energy UK's RC62 guidance — independent structural loading calculations, DC arc-fault mitigation and proper isolation, fire compartmentation and emergency access, full commissioning documentation. This is design discipline, not a checklist added at handover.
Commercial terms
One fixed price, one contract
Our fixed price covers design, structural calculations, DNO fees, equipment, installation, commissioning, certification, and an agreed initial support period — one scope, one contract, no separate suppliers to manage. Unforeseen site conditions (roof repairs, structural strengthening, DNO-mandated reinforcement) are identified early and agreed separately before work proceeds, so the fixed price stays meaningful rather than becoming a starting figure.
Ongoing relationship
Beyond switch-on
The relationship doesn't end at commissioning. We stay involved for remote performance monitoring, annual inspection coordination, warranty and defect resolution, and planning future phases — storage, EV charging, heat pumps — as your needs grow.
Other commercial pathways
Energy storage
Commercial battery storage assessed, designed, and delivered through one accountable fixed-price scope.
View Energy storage →EV ChargePoint
Workplace and depot charging — go to the eMobility hub.
View EV ChargePoint →Air source heat pumps
Commercial air source heat pumps assessed, designed, and delivered through one accountable fixed-price scope.
View Heat pumps →Air conditioning
Zoned Air-to-Air (VRF/VRV) comfort cooling and heating — assessed, designed, and delivered through one accountable fixed-price scope.
View Air conditioning →Energy Transition Planning
Business case, technology pathway and fixed-price delivery.
View Energy Transition Planning →
Ready to install solar properly?
Tell us about your site, your electricity usage, and what you want the system to achieve. We'll assess the opportunity and deliver the agreed project as one accountable, fixed-price relationship.