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Official CAE system

New aerothermal heat pump or an electric car? Get paid for your CAEs without lifting a finger.

Your installation or your vehicle generates Energy Savings Certificates (CAE) with economic value. Sanwa calculates how much you're owed, processes the entire case on its 100% automated platform and pays you in about 3 months. Free for you — and it also works for insulation, windows and the rest of the CAE catalogue.

+€1.5Mmanaged in CAEs this year

+500 procedures managed3 months average time to payment€0 cost to you

CAE calculators

How much are you owed?

Estimate it in one minute. Free and with no sign-up.

We pay you the same week it's issued100% online tracking

Installation company? Build CAEs into your quotes →

Technology validated by

Vaillant
Saunier Duval
Acciona
Leyton
Emovili
Greenfo
Lumio
Solfy
Logicode
Vaillant
Saunier Duval
Acciona
Leyton
Emovili
Greenfo
Lumio
Solfy
Logicode
Who Sanwa is for

Two ways to work with us, depending on who you are.

If you have a CAE you want to monetise, we take care of it. If you're a company handling volume, we give you the platform.

End userIndividual or SME

New aerothermal heat pump, an electric car or another efficiency upgrade?

We specialise in monetising aerothermal installations and electric vehicles — and we also cover boilers, insulation, windows and the rest of the CAE catalogue. Calculate how much you're owed or let us advise you at no cost.

  • Free advice from start to finish
  • We handle all the paperwork
  • You get paid in about 3 months — we pay you the same week it's issued
Companies / FreelancersCompany or freelancer with recurring volume

Process your cases from our platform.

If you're an installer, materials manufacturer or engineering firm, we give you access to the platform to launch your own procedures: CAEs, legalisations and energy certificates — all traceable and in real time.

  • Platform for installers, manufacturers, engineering firms and associations
  • Launch and track every procedure from a single dashboard
  • Bulk upload, API and white-label models available
  • Installation companies
  • Materials manufacturers
  • Engineering firms and ESEs
How we manage CAEs

A platform that processes, verifies and buys your CAEs for you.

Sanwa centralises the entire Energy Savings Certificate cycle: calculation, documentation, verification with an accredited body and connection with the Delegated Subject. Our engine automates every step so the case is ready in weeks, not quarters.

Once the CAE is issued, we buy it and settle it within the same week — and on every transaction you decide how much fee your company keeps.

See the full CAE page
  1. 01

    Capture

    You upload the action

    You upload the case from the platform (residential, industrial, tertiary, transport or agricultural) and the system automatically detects the applicable CAE sheet from RD 36/2023.

  2. 02

    Automation

    We calculate the savings and generate the documentation

    Technical report, pre- and post-improvement certification, official templates and validations — all generated with no manual intervention, ready for verification.

  3. 03

    Purchase and settlement

    We buy the CAE and pay you

    We connect with Obligated and Delegated Subjects, close the certificate at the best market price and pay you the same week it's issued.

+40 standardised sheets·5 sectors covered

Average time

2–3 months

From case registration to CAE issued and settled.

Payment

Same week

We pay you the same week the certificate is issued.

Fee

At your discretion

On each case you decide what fee your company keeps.

Visibility

100% live

Status, kWh, amounts and documents visible at all times.

More than €1.5 million in CAEs managed this year with Sanwa

We work with installers, ESEs, industry, the tertiary sector and Obligated/Delegated Subjects across the 5 sectors of MITECO's official catalogue.

Request an assessment
The platform

It's not an agency. It's the digital infrastructure for your back office — convenient and simple.

A platform for companies and freelancers, designed so your team operates paper-free, with no lost emails and no human dependencies on repetitive steps. Try it right here: navigate between sections and open any case.

app.sanwa.es / caes
kWh this month
142,300
Paid to client
18
Average time
2.4 m

Fees pending collection

7 cases

11,480 €

Estimated amount withheld on cases already issued, pending settlement to the client.

CAE cases

Ref.
Client
Status
Access the real platformor explore the capabilities below ↓

User and permission management

Create teams, define roles and keep control of who accesses which case.

Automated billing

Every procedure generates its invoice. Integrate with your accounting with no manual work.

Real-time statistics

Volume, deadlines, statuses and bottlenecks visible from day one.

Ticketing system

Human and technical support inside the platform so no thread gets lost in email.

Equipment database

Heat pumps, inverters and chargers from the main manufacturers preloaded with their spec sheets.

Per-case traceability

Every document, every status and every validation is recorded and auditable.

+€1.5Mmanaged in CAEs this year
+500procedures managed in 2026
3 monthsaverage time to payment
€0free advice and processing
Other services

Comprehensive management of administrative procedures: all your energy paperwork in one place.

Legalisations, energy performance certificates and works permits — all processed with the same automated platform that powers CAEs.

Full catalogue
Legalisations17 autonomous communities

One legalisation, one single interface, every community.

We work across all 17 communities, prepare the standardised templates, file the documentation with the Industry authority and resolve any regional quirk. Depending on the community, we have registration receipts from just 3 days after filing.

On the platform you fill in a very simple form, the same for every community. No more needing an engineer to spend 45 minutes processing a legalisation: an administrative staff member with basic know-how gets it done with no trouble.

  • Thermal installations
    • Aerothermal
    • Air conditioningComing soon
  • PV self-consumption
    • Residential and industrial photovoltaics
  • IRVE
    • Electric vehicle chargers
app.sanwa.es / legalizaciones / aerotermia

Installation details

Type of service covered and emitters that distribute heating or cooling throughout the property.

Emitter type*
Energy certificatesCEE · Single, pre- and post-improvement

Agile CEEs, built to extract the maximum possible CAE.

We issue energy performance certificates with nationwide coverage and prepare them with the profitability of the associated CAE case in mind.

Request a CEE
  • 100% via an accredited remote-survey platform for maximum agility

  • Technicians trained to process cases for CAEs, squeezing out every last kWh of savings for maximum profitability

Works permits and licences before the town council

Municipal procedures

Works permits and responsible declarations with town councils across Spain, from the same platform.

Enquire
Our commitment

Every case we automateis clean energy that reaches the grid sooner.

Turning administrative chaos into software isn't a whim: it's what lets renewables roll out at the pace the energy transition demands.

+€1.5M

managed in CAEs this year

17

autonomous communities

+8,000

town councils covered

How we work together

Models that adapt to your volume, not the other way around.

From an installer SME with its first case to a retailer with its own branded platform. Choose the format that fits how you operate.

Standard SaaS

Access to the platform with pay-per-procedure pricing. Designed for installers and SMEs just getting started.

Referral system

Invite other companies and earn a percentage of the procedures they generate on Sanwa.

Bulk upload (CSV)

Import hundreds of cases at once. Designed for high volumes and campaigns.

White label

We lease our technology so you can offer the service under your own brand and interface.

Integration API

Connect your ERP or CRM and launch procedures on Sanwa without leaving your software.

Let's talk

Do you process renewable installations?Tell us your volume and we'll design a tailored integration.

We serve everyone from small installer SMEs to large accounts with thousands of cases a year. We reply within 24 business hours.