The complete MCS handover pack — 12 documents
Every MCS-certified UK farm solar install should hand over a complete documentation pack at commissioning. Here's exactly what it contains and why each item matters:
Why the handover pack is the most under-valued part of a solar install
Many UK farm owners focus entirely on the install itself and treat documentation as an afterthought. That's a mistake. The handover pack is what makes the asset financeable, insurable, claimable, and saleable. Specifically:
- Smart Export Guarantee income requires the MCS certificate — no certificate, no SEG payments.
- Insurance requires the BS 7671 electrical certificate and structural calculations to underwrite the asset.
- Supplier audits (Tesco, Sainsbury's, M&S, Morrisons, Waitrose, Arla) require the MCS certificate plus generation data as evidence of Scope 2 reduction.
- Warranty claims require the full documentation set — particularly if the original installer ceases trading and the Insurance-Backed Warranty provider takes over.
- Asset sale or refinancing — a complete handover pack materially increases the value buyers and lenders place on the asset.
Store a digital copy off-site immediately
We recommend storing a digital copy of the complete handover pack in cloud storage immediately on receipt. If the physical copy is lost (fire, flood, farm-office clear-out), the documentation can be hard to reconstruct years later — particularly the as-built single-line diagram and structural calculations. We retain a copy on our own systems for the life of every system we install, so we can re-issue, but not every installer does.
Supplier-audit-ready subset
For farms supplying major UK retailers, we also provide a supplier-audit-ready subset of the handover pack — the MCS certificate, annual generation data, kWh-consumed-on-farm vs kWh-exported breakdown, and carbon factor reduction calculation — as a separate document that drops directly into a supplier audit submission. See our supplier framework hub.
Related pages
MCS handover pack — common questions
What is an MCS handover pack?
An MCS handover pack is the complete set of documentation handed to the asset owner at the end of a certified solar PV installation. For a UK farm solar install it contains the MCS certificate, DNO G99 connection records, BS 7671 electrical certificate, PVSyst yield model, single-line diagram, structural calculations, planning/Permitted Development confirmation, manufacturer datasheets and warranties, Insurance-Backed Warranty certificate, O&M manual, and monitoring portal credentials. Where re-roof was part of scope, it also includes asbestos waste consignment notes.
Why does the MCS handover pack matter?
The handover pack is essential for four reasons: (1) the MCS certificate is required to claim Smart Export Guarantee income; (2) insurers require the electrical certificate and structural calculations to underwrite the asset; (3) supermarket and processor supplier auditors require the MCS certificate and generation data as evidence of Scope 2 reduction; (4) the documentation is needed for any future warranty claim, asset sale, or refinancing. A missing or incomplete handover pack materially reduces the asset value and complicates every downstream transaction.
How long should an MCS certificate take to arrive?
The MCS certificate is typically issued within 10-20 working days of commissioning, once the installer lodges the install on the MCS database. The MCS certificate number can be verified by anyone on the public MCS database. If your installer has not provided an MCS certificate within 30 days of commissioning, chase it — without it you cannot claim Smart Export Guarantee.
What happens if my original installer ceases trading?
If your installer ceases trading, your Insurance-Backed Warranty (IWA or equivalent) provider takes over the workmanship warranty. But you need the handover pack documentation to make any claim. This is why we recommend storing a digital copy of the complete handover pack off-site (cloud storage) immediately on receipt. We provide the full pack as a single indexed PDF plus individual source files. See our UK solar panel warranty explainer.
Do you provide a digital handover pack?
Yes — we provide the complete handover pack as a single indexed PDF plus individual source files (CAD single-line diagrams, PVSyst model files, certificate PDFs). We retain a copy on our own systems for the life of the system so we can re-issue if the customer loses their copy. We also provide the supplier-audit-ready subset (MCS certificate, generation data, carbon factor calculation) as a separate document for farms supplying major UK retailers. See our handover documentation service.