greenmetrics.ai
greenmetrics.ai runs an early flood warning service for cities: LoRaWAN sensors watch water levels in drains and surface channels, then push real-time alerts to civil protection units so crews act before streets go under.
What is greenmetrics.ai?
greenmetrics.ai is a Portuguese smart sensor and data analytics company based in Lisbon, and Early Flood Warning is the use case it markets under the name greenmetrics city. The promise is narrow and operational: notice an urban flood at the moment it begins, and tell the people who can act about it before water reaches the street.
The chain is physical before it is digital. Wireless leak-detection and water-flow sensors are placed at the lowest points of a site and upstream inside buried stormwater pipes, reading water level and flow continuously. They report over LoRaWAN, a low-power radio protocol the company describes as reaching up to 10 km with a battery life of up to 10 years, so no Wi-Fi and no 4G is needed underground. Readings travel in real time to a server and appear in a customised dashboard or app that runs on any computer, smartphone or tablet, where thresholds and alerts are configured.
The English pages claim an alert in under 10 seconds and an 80% reduction in response time. The Portuguese versions of the same site claim under 5 seconds and add predictive alerts built on rainfall and water-level history. The stated audience is explicit: civil protection units, municipal authorities and site operators.
Two deployments are documented by the vendor. Across seven road tunnels in downtown Lisbon, a flood starting in the Av. Joao XXI tunnel was detected at 12:31 on 30 November 2023; blocked drains were cleared and the tunnel reopened within 15 minutes, with no damage or injuries reported. At Alges train station, exposed to river backflow at high tide, an alert fired at 19:04, pumps were running within 10 minutes and service resumed in under an hour. The same solution page also covers water quality monitoring, reporting chemical, biological and physical parameters of rivers, streams and public reservoirs.
Flood warning sits inside a wider catalogue that also spans wildlife tracking, golf turf irrigation, agriculture and custom sensor research, but it is the one the homepage leads with. Everything is sold by quotation: there is no published price, no trial and no self-service sign-up.
What it does
- Detect the onset of an urban flood at a monitored point within seconds
- Monitor water level and flow in stormwater drainage systems and surface channels
- Send real-time alerts to civil protection and emergency response units
- Enable preventive action before flooding spreads and damage escalates
- Monitor water quality in rivers, streams and public reservoirs
- Follow readings on a customised dashboard from computer, smartphone or tablet
- Build an event history that supports long-term climate resilience planning
When to use greenmetrics.ai / When not to
A quick filter to help you decide if greenmetrics.ai is the right fit.
When to use greenmetrics.ai
- Civil protection and emergency response units that must act in the first minutes of an urban flood
- Municipal public works teams responsible for stormwater drainage and low-lying streets
- Operators of flood-prone infrastructure such as road tunnels, train stations and underground car parks
- City authorities building climate adaptation and resilience programmes
- Water and environment services monitoring channel levels and water quality
When not to use greenmetrics.ai
- Teams wanting software they can switch on themselves, since sensors must first be installed on site
- Buyers who need a published price before starting a commercial conversation
- Developers looking for an API or technical documentation to integrate the readings
- Organisations with strict procurement requirements on GDPR, hosting and subprocessor disclosure
- Anyone needing catchment-scale flood forecasting rather than in-situ measurement at fixed points
How to use greenmetrics.ai
A typical end-to-end flow, from setup to results.
- Identify the low points and upstream pipe sections that need to be monitored
- Contact greenmetrics.ai through the website form, by phone or by booking a call
- Agree scope and commercial terms, since nothing is priced publicly and every deployment is quoted
- Have the water level and flow sensors installed at the chosen points and upstream in the pipework
- Connect the sensors to LoRaWAN coverage, with no Wi-Fi or mobile network required on site
- Set alert thresholds with the vendor inside the customised dashboard
- Route alerts to the response units that will actually act on them
- Follow readings in real time from a computer, smartphone or tablet
- Review the event history afterwards to refine thresholds and preventive procedures
Pros & Cons
Pros
- Field results are documented with dates, times and named locations rather than generalities
- Detection and response performance is stated in figures, not adjectives
- Radio technology suited to buried infrastructure: no Wi-Fi or mobile coverage needed, long battery life
- A clear and assumed operational buyer, namely civil protection and municipal technical services
- End-to-end delivery covering sensor, network, server and dashboard
- Site genuinely translated into Portuguese, Brazilian Portuguese, Spanish and Italian
- Recognised by ESA BIC Portugal and a 2024 CaixaBank EmprendeXXI regional award
Cons
- No published price for the flood solution, so a sales conversation is unavoidable
- No API, no technical documentation and no security page
- Privacy policy left as an unfinished template, still showing "[email address]" as the contact
- No mention of GDPR anywhere, and nothing on hosting, retention or subprocessors
- English and Portuguese versions contradict each other on alert speed, 10 seconds against 5
- Signs of neglect: footer frozen at 2023, blog stopped in September 2024, three pages missing from the menu
- One generic mailbox for sales, legal and support, and no full postal address or company registration number
Pricing & Plans
No price is published for the early flood warning solution. It is sold on quotation: the only commercial paths offered are a contact form, a telephone number and a call booking link, and neither a permanent free plan nor a free trial is announced. Because amount, currency and billing unit are all unknown, the three pricing fields are deliberately left empty together rather than filled with an approximation. This is not a collection gap: a sensor service of this kind is typically billed per sensor, per station or per monitored point, and none of those units exists in the platform's closed list of billing units. The only figures anywhere on the site, between 80 and 150 euros for short data analytics training programmes, sit on a separate page that still carries unedited template text and do not price this solution.
Data, GDPR & hosting
A consolidated view of how greenmetrics.ai handles your data.
GDPR overview
There is none. A search across every page collected, from the homepage and solution pages to the terms and the privacy policy, returns no occurrence of GDPR or its Portuguese equivalent. The privacy policy states no legal basis, no retention period and no data subject rights of access, rectification, erasure, portability or objection; it names no data protection officer and designates no Article 27 representative. It also carries an unreplaced template placeholder, the contact section still reading "please contact us at [email address]". The terms declare themselves governed by "the laws of the European Union" and submit disputes to "the courts of the European Union", a formulation without practical meaning. As the publisher is established in Portugal the GDPR applies regardless; the site simply documents nothing.
Who owns the data?
The site does not settle this. The terms and conditions cover the website only: they state that the website and its content, including text, graphics, logos, images and software, are the property of Greenmetrics, and they say nothing about the measurement data produced by customer sensors. The privacy policy is equally narrow, addressing form submissions, newsletter sign-ups and browsing data rather than the readings a deployed installation generates. No clause assigns, licenses or restricts rights over customer flood data, and no data processing agreement is offered. Ownership of sensor data therefore has to be settled in the contract, because the published documents do not address it at all.
Reuse rights
For website data, the stated purposes are delivering and improving the service, answering enquiries, personalising content, sending communications and analysing usage. Greenmetrics states that it does not sell, trade or rent personal information to third parties for marketing purposes, but reserves the right to share it with unnamed third-party service providers and with authorities on legal request. Users may opt out of marketing communications at any time. Nothing on the site tells a customer what they may do with their own sensor readings, whether those readings can be exported or republished freely, or whether the vendor reuses them. That silence has to be resolved contractually before deployment.
Data retention & training
Hosting summary
Nothing is published. Across the pages collected there is no hosting country, no region, no cloud provider and no named subprocessor. The privacy policy mentions trusted third-party service providers who assist in operating the website and says they are contractually bound to confidentiality, but it publishes no list of them and does not state that none exist. Security is described only as reasonable measures, with an explicit caveat that no method of internet transmission or electronic storage is completely secure. The website itself is served from Wix infrastructure, and the domain resolves to an anycast address operated by Wix.com and observed in the United States. That describes where the marketing site is published, not where customer sensor readings are stored, and it must not be read as a hosting commitment. For an operator handling municipal infrastructure data, where readings are stored and under which jurisdiction is a question to put directly to the vendor, because the public documentation does not answer it.
Things to keep in mind
Risks and trade-offs to weigh before adopting greenmetrics.ai.
- Life-safety dependency: an alert that fails or fires late has physical consequences, so the claimed latency should be contractually guaranteed and independently tested
- Over-trust in automation, where crews stop checking known trouble spots because a sensor is presumed to be watching them
- Coverage is point-based: water can rise where no device was installed, and the system is silent about places it does not monitor
- Unresolved data ownership, since nothing published states who owns the measurement data or what the vendor may do with it
- No GDPR, hosting, retention or subprocessor information, all of which a public body must obtain privately before procurement
- Contradictory published claims between language versions weaken any figure quoted in a tender document
- Single-vendor hardware dependency on a small team, with a website showing signs of neglect, making continuity of support a fair question
Setup & Integrations
Technical difficulty
Moderate, and mostly physical rather than technical. Sensors must be installed at the low points to be monitored and upstream inside buried pipework, which requires site access and coordination with the infrastructure owner. LoRaWAN coverage must be available, although no Wi-Fi or mobile network is needed at the sensor. Thresholds and the dashboard are configured with the vendor, since deployments are described as customised. There is no self-service path and no published installation guide. Once running, daily use demands no technical skill: readings and alerts are consulted in a browser or on a phone.
Deployment
Supported languages
Behind greenmetrics.ai
Social
Resources
All the official URLs gathered for verification and reference.
Frequently asked questions
What does the system actually detect?
How quickly is an alert sent?
Who receives the alerts?
What connectivity does it require?
How are the readings consulted?
What does it cost?
Is there an API or a mobile app?
Has the system been deployed anywhere?
Does the site address GDPR?
Which languages is the site available in?
Should you pick greenmetrics.ai?
greenmetrics.ai is doing something unusually specific, and doing it in public. Rather than selling a climate platform in the abstract, it sells a sensor that notices water rising in a drain and tells a civil protection dispatcher within seconds, and it backs that with dated, timed, named deployments in Lisbon road tunnels and at Alges station. For a municipal buyer, that kind of evidence is worth more than a feature list.
The gap is everything around the product. The website is a Wix build that was finished quickly and then left alone: the privacy policy is still a template with "[email address]" where the contact should be, GDPR is not mentioned once even though the publisher sits in Portugal, nothing is said about where data lives or how long it is kept, and three pages, including the only one carrying prices, are unreachable from the menu. The footer is frozen at 2023 and the blog stops in September 2024. The English and Portuguese versions of the same page disagree on how fast an alert fires.
None of that means the technology fails; the case studies suggest it works. It does mean a buyer cannot evaluate this remotely. There is no price, no API, no documentation, no security page and no contract material to read, only a booking link. Anyone seriously interested will have to take the call, and should arrive with written questions about data ownership, hosting, retention and real alert latency, because the site answers none of them.
Best suited to cities and infrastructure operators with a known flooding problem and a procurement process able to absorb a bespoke, hardware-first deployment.
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