Ship Connected. Stay Open.
Drop in our communications board, ship compliant connected hardware, and unlock recurring revenue — with no proprietary lock-in.
3M+
EV Chargers by 2030
1.8M
Heat Pumps by 2030
695K
Batteries by 2030
The Challenge
Proprietary stacks are holding OEMs back.
Energy device manufacturers face rising expectations for smart, connected, grid-ready products — but the tools available today create more problems than they solve.
Software Stack Cost
Building and maintaining a connected software stack is expensive when your core revenue is hardware. It diverts engineering focus and rarely justifies itself on transactional margins.
Standards Complexity
A growing web of regulations and standards demands specialist knowledge to understand, implement correctly, and keep pace with as they evolve.
Compliance Cost
Achieving and maintaining compliance status — from cybersecurity certification to grid-readiness requirements — is a significant ongoing cost and operational burden.
Vendor Lock-in
Proprietary communication stacks tie you to a single vendor's roadmap and pricing, limiting your ability to differentiate or switch.
How It Works
From Edge to revenue in four steps.
WattStack handles connectivity, compliance, fleet management, and flex monetisation — so you can focus on building great hardware.
Connect
WattStack Edge drops into your device. Built-in WiFi 6, BLE 5.4, and Thread radios. Extend with WattStack Connect for Ethernet or Cellular failover.
Comply
Standards-native from day one. OCPP 1.6/2.1, OpenADR 3.1, Matter 1.4, Mercury, TEIA, and EEBus — dramatically reducing your cybersecurity and compliance burden.
Control
WattStack App gives your end users rich control and scheduling. Control Room gives your team fleet management, health monitoring, and support workflows. No ongoing licence fees, just a simple, transparent activation per device fee after your fleet gets bigger than 5,000 devices.
Monetise
Earn 10% of flex revenue from your signed-up devices — with zero effort on your side. We manage the flex providers, payments, and infrastructure end to end. Recurring income from your opted-in fleet, fully managed.
Security & Compute
Security as a foundation, not an afterthought.
Too many connected devices treat security as a checkbox. WattStack Edge enforces it in hardware — with embedded compute powerful enough to replace your existing main controller, reducing BOM cost and board complexity.
Hardware-Enforced Security
- OEM firmware runs in a patent-pending hardware sandbox with no direct network access.
- All external communication passes through the Edge SDK — eliminating arbitrary network access from third-party code.
- Secure boot chain ensures only signed firmware runs on the device.
- Data encrypted in transit and at rest.
Embedded Compute
- Two Arm Cortex-M33 cores with 512 KB SRAM available for your device logic.
- 32 GPIO (SPI, I²C with hardware PWM, interrupts, custom waveforms), 8 ADC at up to 100 kHz, UART.
- Sufficient for inverter switching, PID loops, motor drives, and complex real-time control.
- Can replace your existing main controller — reducing BOM cost and board space.
Products
Modular products. Adopt what you need.
No forced bundling. Start with Edge alone, add cloud apps and flex monetisation when you're ready.
WattStack Edge
The low-cost, secure communications board that drops into your device. Your firmware implements imperative commands for your electronics — we handle connectivity, protocols, security, and scheduling.
WattStack Connect
Connectivity expansion for Edge. Adds Ethernet or Cellular (4G/LTE) failover for sites where WiFi alone isn't enough. Plug-in expansion — no changes to Edge firmware or device integration.
WattStack App
A modern web and mobile app for your end users. Smart scheduling, behaviour modes, boost override, tariff sync, and multi-user access. White-label shell available for your brand.
WattStack Control Room
Fleet management for your operations team. Device health, alerts, customer support workflows, and cloud-sourced configuration. First 5,000 device activations free per OEM partner.
WattStack Flex
Opt in to grid flexibility markets. Your devices earn from demand response — with 10% of flex revenue shared back to you as the OEM partner.
Market Opportunity
The UK market is accelerating.
Regulatory tailwinds, growing device markets, and rising demand for grid flexibility are creating a massive opportunity for connected device manufacturers.
£5.2B
UK Flex Market by 2030
Total addressable flexibility market value
12 GW
Consumer-Led Flex by 2030
Triple from 4 GW today
10%
OEM Flex Revenue Share
Recurring income from your opted-in fleet's grid flexibility
Ready to ship connected?
Talk to our team about integrating WattStack Edge into your next product.
Get WattStack