Read the current official programme
Identify the exact scheme, responsible authority and current text before assuming a percentage, ceiling or deadline. Check applicant and property eligibility, eligible equipment and costs, energy evidence, application sequence and completion dates. An expected programme is not an open call, and an earlier year's approval does not establish current availability.
Check municipal and tax conditions separately
Read the applicable IBI and ICIO ordinances and ask the competent authority about the property's conditions and application window. For IRPF, check the relevant legal provision, eligible works, certificates, payment dates, deduction base and the taxpayer's situation. Do not treat a headline rate as cash savings or assume that grants and deductions can all be stacked on the same cost.
Keep the energy evidence
Where a scheme requires an improvement, establish the prescribed calculation method, starting condition, post-work evidence and qualified signatory. A product efficiency label is not automatically a building energy improvement. Check certificate timing and eligible payment records before the work; do not infer eligibility solely from installing solar or a heat pump.
Separate award from cash flow
Check whether support is a tax deduction, bill reduction, reimbursement or grant, and when an applicant can actually benefit. Establish eligible costs net of other support and any tax implications. Budget for the project without assuming a payment date; obtain professional tax advice for the owner's circumstances.
Agree responsibilities and scheduling
Confirm who handles the survey, design, any community consent, municipal procedures, electrical registration and distributor or supplier submissions. Requirements depend on the property and installation. Equipment availability, safe access, enabling work and third-party decisions affect the schedule. Ask how faults, disruption and support requests will be handled; do not infer attendance hours from a website contact form.
Make financial assumptions explicit
Compare the actual installed quote with interval self-consumption, imports, exports, contracted prices and applicable credit limits. Include losses, fixed charges that remain, maintenance, replacement, finance and taxes. Treat incentives as conditional until their applicable requirements and, where required, award decisions are established. A simple cost divided by annual benefit is not a forecast or a guaranteed payback.
Documents and reference links
Check the current version and applicability. These links do not establish failure rates, LIT credentials or an outcome for your property.
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Provide the location, objectives, existing models, plans or safely taken photos, and measured demand. Confirm scope, availability, assessment fees and responsibilities before booking.