Generation in the model
Modelled PV generation lowers the dwelling's modelled emissions and primary energy, helping it meet the target rates. Orientation, pitch and shading all feed into the calculation.
SAP compliance solar,
designed in.
Solar PV specifications that help new-build dwellings meet Part L through SAP. We work with your energy assessor from the design stage, install plot by plot with our own MCS-certified team and provide handover documents for every home.
- Part LCompliance support through SAP
- PlotBy plot specification
- MCSCertificates for every dwelling
- Part SEV charge points where required
SAP inputsSpecifications your assessor can use
Design coordinationArchitect, assessor, M&E
Multi-plot deliveryProgrammed with the build
Handover packsMCS, DNO and homeowner guides
01. Who this page is for
Compliance is easier
Compliance is easier
when solar is in the design.
This page is for housebuilders, developers, technical managers and energy assessors. The Part L 2021 uplift raised the bar for new dwellings, and the Future Homes Standard raises it further. For many house types, rooftop solar PV is now one of the most cost-effective routes to the target emission and primary energy rates in SAP. It is also far cheaper to design in at specification stage than to add after a failed assessment.
We work with your energy assessor and design team at specification stage on array size and orientation for each house type, inverter and battery choices, and the SAP inputs that go with them. We then install plot by plot in step with the build programme, so roofers, electricians and our installers are not competing for the same scaffold.
We hand over every dwelling with an MCS certificate, DNO notification, commissioning record and a homeowner guide. That keeps completions, warranties and the homeowner’s Smart Export Guarantee registration straightforward.
- Housebuilders
- Developers
- Architects & designers
- Energy assessors
- Main contractors
- M&E consultants
02. How solar affects SAP
How solar PV affects
How solar PV affects
the SAP assessment.
Battery treatment
Storage can improve the modelled self-use of generation. We advise where a battery helps the assessment and where it is better offered as a homeowner upgrade.
Part S charge points
New dwellings with parking generally need an EV charge point under Part S. We install them alongside the solar, solar-linked where the design allows.
Fabric first still applies
Solar works alongside good fabric and heating design, not instead of it. We fit our design to the wider specification rather than working in isolation.
Future Homes Standard
We write specifications with the next standard in mind, so your house types do not need redesigning when it arrives.
Evidence for sign-off
MCS certificates and commissioning records support building control sign-off and the as-built SAP.
03. Why Synergy Power
A compliance partner,
A compliance partner,
not just an installer.
Coordinated design
We agree specifications with your assessor and design team before the roof goes on.
Design-stage inputProgramme aligned
Plot-by-plot installation, scheduled around roofing, scaffold and electrical first and second fix.
Multi-plot deliveryCertified every plot
MCS certificate, DNO notification and commissioning record per dwelling.
MCS · NICEICRoofing & solar together
In-roof systems and roofing coordination from one team that does both.
Roofing and solar under one contractor
04. How it works
From specification
From specification
to completion.
Step 01
Free feasibility study
We turn your house types, orientations and targets into a specification for each plot type, with an indicative cost.
No obligationStep 02
SAP coordination
We agree the inputs with your energy assessor and the wider design team.
Design stageStep 03
Programme
We phase installation with the build and the scaffold programme.
Build alignedStep 04
Installation
Our MCS-certified team installs plot by plot, working with your site manager.
Own teamStep 05
Handover
Certificates, DNO notifications and a homeowner guide for every dwelling.
Completion ready
05. Related
More for
More for
developers.
06. Free feasibility study
Send us your
Send us your
house types.
Share your site plan, house types and targets. A UK engineer will propose a specification for each plot type, with the SAP inputs to go with it.
- Estimated system size
- Estimated bill savings
- Carbon reduction estimate
- Indicative payback
07. SAP FAQs
Questions developers
Still have a question?0330 043 1047 Questions developers
often ask us.
Do all our plots need solar to pass Part L?
Not necessarily. It depends on fabric, heating and orientation. We work with your assessor to specify solar where it is the most cost-effective route to compliance.
Can you provide the inputs our assessor needs?
Yes. We supply array size, orientation, inverter and battery details for each house type, in the form the SAP calculation needs.
How does installation fit the build programme?
We work plot by plot, scheduled around roofing, scaffold and electrical fix, and agreed with your site manager.
What do homeowners receive?
An MCS certificate, DNO notification, commissioning record and a plain-English guide, including how to register for the Smart Export Guarantee.
Can you also fit the EV charge points?
Yes. We install Part S charge points alongside the solar, linked to it where the design allows.
Do we have to fit a battery on every plot?
No. A battery is not always needed for the SAP result. We advise where storage helps the assessment and where it is better offered to buyers as an upgrade, and we can install battery-ready wiring so it can be added later.
Can you fit in-roof solar on our house types?
Yes. We offer in-roof and on-roof mounting to suit the roof specification, and our own roofing crew can coordinate with your roofing contractor.
Who handles the DNO notifications?
We do. Smaller domestic systems are usually notified under G98; where a plot or a phase needs a G99 application, we submit it early so it does not hold up connection.
Compliant plots,
delivered.
A free feasibility study from our UK engineering team: a specification per house type with the SAP inputs to match.