Platform · Web — Client work, 2026 · Free audit
Enerva
Scan the QR on your Spanish electricity bill and see exactly where you overpay — from a platform that will tell you not to switch when that’s the honest answer.
Scan the QR on your Spanish electricity bill and see exactly where you overpay — from a platform that will tell you not to switch when that’s the honest answer.
An energy adviser with its incentives in writing.
Commissioned for a mainland Spanish energy client whose offer also covers the Canary Islands. DSL4 Digital engineered the QR, Datadis and tariff-calculation platform; Viva Grafix designed the opposite of a cold-call funnel: an audit experience that can clearly say “lower your contracted power and stay.”
Every commission is disclosed in €/kWh, and cold-calling is banned in code, not in a values slide. Trust is the product.
A free, honest audit earns the right to a switching concierge — in that order.
Bill QR decoding (jsQR against the BOE field layout) or Datadis hourly data in; a clear, itemised picture of the bill out.
The audit happily concludes "don’t switch" — the recommendation engine has no thumb on the scale.
Full PDF audit reports, an 8-state consent state machine, and GDPR handling built for energy data.
DSL4 Digital enforces the audit and disclosure rules in the platform; our interface design makes the resulting money maths and recommendations understandable.
A single chokepoint withholds any commissioned recommendation that lacks its €/kWh disclosure — the ethics policy is a compile-time constraint, not a promise.
The numeric path is a pure, network-free engine: five named rules, Decimal-only money arithmetic, and no LLM anywhere near the numbers.
Datadis, bill decoding and Stripe sit behind Live/Mock integration ports — the whole platform runs and tests without touching a real utility.
Enerva pairs DSL4 Digital’s deterministic audit platform with Viva Grafix’s product design: the most disruptive feature is disclosed incentives — a recommendation users can understand and trust.