Vouchers para Startups — Novos Produtos Verdes e Digitais

Understand energy. Act on insights.

EnergySurveyEngine is a digital green product that turns energy assessments into clear, actionable intelligence for homes, businesses, and sustainability teams.

Get the app Learn more

About the project

EnergySurveyEngine was born from the Green Vouchers initiative, a Portuguese program supporting startups that build new green and digital products. Our mission is to make energy surveys faster, cheaper, and more useful.

🌱

Green by design

Built to help reduce energy waste and accelerate the transition to efficient, low-carbon buildings.

📊

Data-driven

Collect survey data, benchmark performance, and surface improvement opportunities with clarity.

🔒

Privacy-first

Your assessment data stays under your control. No unnecessary tracking, no data selling.

Apoio e Financiamento

O EnergySurveyEngine é um produto digital verde desenvolvido no âmbito do programa Vouchers para Startups — Novos Produtos Verdes e Digitais, cofinanciado pelo Plano de Recuperação e Resiliência (PRR) e pela União Europeia, através do NextGenerationEU. A solução visa apoiar a transição energética, simplificando a realização de avaliações de eficiência energética para edifícios e empresas, contribuindo para a redução do consumo de energia e das emissões de carbono.

Financiado pela União Europeia — NextGenerationEU, no âmbito do Plano de Recuperação e Resiliência da República Portuguesa.

What you can do

EnergySurveyEngine combines a simple survey experience with powerful reporting.

01

Digital energy surveys

Run structured assessments from any device — desktop, tablet, or mobile.

02

Instant scoring

Turn answers into an efficiency score and prioritized recommendations.

03

Exportable reports

Generate clean PDF or CSV reports to share with clients, auditors, or teams.

04

Historical tracking

Compare surveys over time and measure the impact of efficiency improvements.

Get EnergySurveyEngine

Download the backend API engine and install it in your own app or server. It is a single, self-contained package: surveys, real-time responses, file uploads, email delivery, and CSV export — all in one.

Download engine v1.0.0 ZIP

Download is hosted on the private GitHub repository and requires your login/access.

How it works

EnergySurveyEngine is a backend API you install once and integrate anywhere.

1. Define your survey

POST /api/surveys
{
  "title": "Energy audit",
  "fields": [
    { "type": "text", "name": "client", "label": "Client", "required": true },
    { "type": "choice", "name": "type", "label": "Building type", "options": ["House", "Office"] },
    { "type": "file", "name": "photo", "label": "Photo" }
  ]
}

2. Collect responses

POST /api/surveys/:id/responses
{
  "answers": { "client": "Acme", "type": "Office" },
  "files": [{ "name": "photo.jpg", "data": "base64..." }]
}

3. Push in real time

const source = new EventSource(
  `/api/surveys/${id}/responses`
);
source.onmessage = (e) => {
  const response = JSON.parse(e.data);
  console.log(response);
};

4. Email + export

POST /api/surveys/:id/email
{ "to": "team@example.com", "answers": {...} }

GET /api/surveys/:id/export
// returns CSV

Get in touch

Questions about the project, partnerships, or early access? Reach out.