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Solar · System design
Solar system design and sizing in Valencia — panels counted from your bills, not your roof.
The right system size lives in your consumption data, not in how many panels fit. Design from €390, credited in full against installation — with the yield promise in writing.
Is this you
Design first if…
Quotes range from 3 kW to 10 for one roof
Nobody has asked for your bills yet
Shade is real — trees, towers, chimneys
A battery is tempting but unproven
EV or heat pump plans complicate sizing
You decide on numbers, not enthusiasm
In plain terms
Oversized wastes money. Undersized wastes sunshine.
A roof can often hold twice what a household can use — and sellers love roofs. We start from twelve months of your bills, model your hourly profile, then size panels, inverter and battery to the consumption that actually exists. The report is yours, whoever installs.
Credited in full against installation
Your real profile, season by season
Sun paths over your actual roof
Payback calculated, not promised
How it works
From bills to a buildable scheme.
Data intake
Twelve months of bills — sent by message.
Survey & model
Roof measured; shade and sun paths simulated.
The design
Sizing, layout, economics — documented.
Handover
A written scheme you can build with us — or keep.
Why VELTORRA
What the design decides before money moves.
Consumption profiling
When you use power decides what solar is worth.
Shade modelling
Every chimney and palm counted against the yield.
Battery honesty
Storage sized to evening use — or argued against.
Inverter architecture
String, optimised or micro — decided by the roof.
Future loads counted
EV, heat pump and pool included in the math.
The price
A fee that becomes your system.
€390 for the full design, credited against a VELTORRA installation. If the honest answer is 'your roof isn't worth it' — you'll hear that too, in writing.
- Consumption profile analysis
- Roof survey and shade model
- System sizing and layout
- Battery and inverter selection
- Written economics and yield report
The VELTORRA standard
Documented like every VELTORRA project.
Concealed work is photographed before it disappears behind walls, floors and ceilings.
Circuits, pressures and performance verified by measurement — not by assumption.
A documented workmanship guarantee alongside the manufacturer's warranty.
A single named person answers for your project — by message, if you prefer.
Service area · 39°28′N
The same standard at every address.
VELTORRA designs solar systems across Valencia, Torrent, Paterna, Burjassot, Mislata, L'Eliana, Godella, Rocafort, Alboraya and Sagunto — the same starting prices, the same documentation and the same lead engineer at every address.
Related services
Plan the whole system, not one piece.
Questions, answered
Asked before hiring us.
Why pay for a design when solar quotes are free?
A free quote sizes your roof; a design sizes your consumption. The €390 is credited in full when we install — and the report is yours to keep either way, including if it says 'don't build'.
What data do you need from me?
Twelve months of electricity bills — or just access to your distributor portal — plus ten minutes about your habits and plans. Everything else we measure.
Do you model shading accurately?
Yes — sun paths over your actual roof geometry, month by month. Valencia shade is predictable; ignoring it is how systems disappoint.
Should I include a battery from day one?
Sometimes — evening-heavy households often yes, daytime-heavy ones not yet. The model answers it with your numbers; batteries can always join later on a hybrid inverter.
Can you check a solar quote I already have?
Yes — we check the sizing against your bills and the yield claims against your shade, and tell you in writing what holds.
Size it on data. Then build it once.
Send a few details — receive an itemised written estimate. No visits before you're ready, and no phone calls unless you ask for one.