Responding to a solar PV installation tender (public & private contracts, EU 2026)

Installers of PV plants are regular bidders for public procurement and structured private clients (local authorities, social landlords, property funds, hospitals, schools, public-private companies). Several families of contracts stand out.

• Rooftop plants on public buildings: PV equipment for schools, sports halls, hospitals, municipal workshops or social housing (supply and installation of modules, inverters and structures).
• Car-park canopies: PV covering of public car parks or parking zones, often combined with charging points.
• Self-consumption installations: solar production sized to cover part of a public site's consumption (with or without surplus resale).
• Works contracts or global contracts: a "photovoltaic" lot within a construction project, or a global performance / design-build contract including studies, supply, installation and maintenance.
• Call-off frameworks: deployment of several plants across an estate, triggered by successive orders over 1 to 4 years.

Across the EU the logic is identical in all 27 member states: a public operator publishes above the European thresholds on TED, below them on its national platform. An established installer may bid for a cross-border contract subject to freedom of establishment and recognition of qualifications.

The first challenge is the price schedule. In solar PV, each line combines a supply (modules, string or micro-inverters, optimizers, mounting structures, cabling, DC/AC enclosures, safety devices) from a supplier catalog, and labor usually expressed per kWp installed or per m² of roof. The BoQ must aggregate dozens to hundreds of consistent lines, with overheads, margin and contingency. A unit error (€/kWp vs €/module), a missing item (grid connection, metering, scaffolding) or an unsourced price distorts the price score — often 40 to 60% of the overall score.

The second challenge is the technical proposal and sizing. The buyer scores technical value on precise criteria: plant sizing and expected energy yield (in kWh/year, estimated and to be validated, never guaranteed), occupied-site methodology, working-at-height and electrical safety, grid connection (the DSO or local operator), schedule, human and material resources, product and production guarantees, maintenance plan, and an environmental approach including end-of-life and module recycling. A generic proposal copied from one tender to another is penalized: you must answer the consultation rules criterion by criterion.

The third challenge is administrative: qualifications (PV/renewable-energy certifications, electrical qualifications), working-at-height and electrical authorizations, insurance certificates, and the ESPD/DUME for EU public procurement. False or expired documents lead to rejection — and even criminal penalties for false statements.

The assistant starts from the tender: you upload the tender file (PDF), it extracts the buyer, object, lots, award criteria and weighting, and the buyer's language. The technical proposal is then structured to develop the most heavily weighted criteria first (sizing, methodology, safety, guarantees, maintenance, recycling), in the contract's language.

For the price schedule, you import your supplier catalogs (modules, inverters, structures) in Excel, CSV or PDF, and enter your ratios: labor price per kWp or per m², overheads, margin, contingency, travel, scaffolding. The assistant computes each line (quantity × unit price excl. VAT from the catalog, or installed power × labor ratio), applies VAT and totals, and exports an editable Excel BoQ. No price is invented: an item without a source is marked "to complete". Any yield mentioned is presented as an estimate to be validated, never as a guarantee.

• Technical proposal structured around the tender's award criteria (sizing, safety, guarantees, maintenance, recycling).
• Costed BoQ from your equipment catalogs + labor ratios per kWp (Excel export).
• Pre-filled ESPD/DUME draft for EU public procurement.
• Deliverables in PDF, editable Word and Excel, in the buyer's language.
• Your catalogs and ratios stay confidential, reusable across tenders.

You stay in control: the assistant produces a solid base that you verify, complete with your real references, your yield study and your guarantees before signing and submitting. It replaces neither your expertise nor legal advice — it removes the hours of formatting and calculation where the risk of error is highest.

A controlled response follows a stable sequence, whether the contract is public or private, in France or elsewhere in the EU.

• Monitoring: spot relevant solar PV tenders on the platforms (TED, buyer profiles).
• Tender analysis: object, lots, target capacity, award criteria and weighting, deadlines, required documents.
• Go/no-go decision: technical capacity, similar references (rooftop, canopies), workload, grid connection, achievable deadlines.
• Costing: BoQ from equipment catalogs + labor ratios per kWp, with overheads, margin and contingency.
• Technical proposal: answer the criteria item by item — sizing and yield (estimated, to be validated), safety, grid connection, guarantees, maintenance, recycling.
• Administrative documents: ESPD/DUME, qualifications (PV/RGE), authorizations, insurance certificates.
• Electronic submission before the deadline, with e-signature where required.

The BoostPro IA assistant handles steps 4 to 6 — the most time-consuming and riskiest — producing proposal, BoQ and DUME in under ten minutes from your real data. You focus your time on strategy (price, sizing, differentiation, references) rather than formatting.