For device manufacturers
Connected, compliant hardware without building the software company.
WattStack Edge is a comms module you design into your device, or connect alongside it. Drop in your driver code, and WattStack handles connectivity, security, grid compliance and flex.
Piloting now with manufacturers across heat pumps, thermal storage, and battery storage, over their own native protocols. The stack is engineered for manufacturers shipping at volume.
One module, four ways to fit the Edge, from a standalone unit to solder down on your own PCB.
The challenge
Connectivity and smart behaviour are now expected in your devices, but require an IoT and software team you may not have.
A full software stack
Connectivity means cloud, app, telemetry, management interface, OTA, security and optimisation, which diverts engineering time and budget from the hardware that is your actual product.
A moving compliance target
Regulation is moving quickly globally. In the UK, the DESNZ / Elexon Smart Secure Electricity Systems programme, PAS 1878:2026 and EV smart charging regulations keep evolving over an ETSI EN 303 645 baseline. Keeping pace is a specialist job in its own right.
Vendor lock-in
Proprietary stacks tie you to one vendor's roadmap and pricing, and allow a platform to sit irrevocably between you and your customer.
Connect
The Edge comes with Wi-Fi 6, BLE 5.4 and Thread built in. Above it sits an integrated, fully featured, scalable cloud service. If you want to use it.
See the hardware →Comply
The Edge is built to be standards-native: Modbus and serial mappings work today, and OCPP, OpenADR, Matter and EEBus will be added, with status tracked transparently. The open standards basis means no lock-in.
See the protocol matrix →Control
The WattStack App gives your customers modern, reliable control, under your own branding if you desire. WattStack Control Room gives your team fleet oversight for support.
See the App and Control Room →Monetise
Opted-in devices can earn from grid flexibility. Take the Full stack option and we run the entire flow for you, take Direct API and route flex through the public API yourself, or let a party the device is configured to talk to, such as a flexibility provider, reach it directly.
See the deployment options →Build vs buy
Integrate in weeks.
| With WattStack | Build it yourself | |
|---|---|---|
| Time to market | Around 16 weeks | Set by your own roadmap / funding |
| Upfront cost | The cost of the Edge module | BOM cost of a Wi-Fi module plus £300k or more for software build |
| Effect on BOM | Edge can replace the mainboard processor you would otherwise spec | A Wi-Fi module plus your own mainboard processor |
| Cybersecurity | Your burden minimised by hardware isolation | Security perimeter sits with your team and is yours to own |
| Standards and compliance | Tracked and implemented for you, on a standards-native module | You track, understand and implement each regulation and standard needed |
| Ongoing maintenance | Handled by WattStack as a service | Your team, indefinitely |
| Your engineers | Focused on the hardware that drives your principal revenue | Diverted to plumbing and keeping you current |
Indicative comparison. Time and cost vary by device and integration scope.
You can also use the Edge module on its own. The Edge builds on open standards with a public API, so if you want to run your own services on top of these options, nothing in the hardware stops you.
Security & the sandbox
Minimise your cybersecurity burden.
Device firmware runs on a sandbox processor with no route of its own to the network, and therefore none to the internet. Because your code cannot reach the network directly, the bulk of the cyber-certification burden sits with WattStack, not your team.
You write the device logic. We carry the security boundary. The isolation is enforced by the hardware layout, without requiring software trust. Our architecture is patent pending.
See the security boundary →New revenue
Earn from the hardware you already ship.
Every device you ship can become an asset that earns recurring revenue, for you and for your customer, for as long as it stays in service. Settlement and payments are handled whichever route you take, so the upside reaches both of you without either needing to do anything extra, or to understand the nuances of grid flexibility.
See pricing →Getting started
Four steps from evaluation to volume.
Nothing in our model commits you to a design-in. You bench it first, then pilot on devices already in the field, and only change your production line when you decide to. The Edge builds on open standards, so your options stay open after that too.
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Evaluate
We send Edge hardware and an Adapter Board, or you send us a device. Either way you bench the integration against your own device's controls, over its native protocol, with our engineers assisting.
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Write the driver
Your full device logic is written in C against our Edge SDK. It declares what the device can do, and executes in the sandbox on the module.
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Pilot
Prove it works in current-generation devices in the field, using our Adapter Board, before anything requires change on your production line.
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Design in
At volume, the Edge can be placed on your own board by pick and place. Your device code runs in the Edge's OEM sandbox, so you no longer need to spec a main processor of your own. Edge costs are offset against BOM savings.
Ready to ship connected?
Bench the integration against your own device with an engineer alongside you, and understand the right integration path for your product.