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Pricing

Free to monitor. £1/mo to control.

Two tiers, both about the app itself. Engineer services are handled separately by Solar Tech Support — our sister brand.

Install Sentinel free
The app

Two product tiers.

Free Watch is monitoring only. £1/mo Guard adds self-serve control.

Watch

£0Free forever · read-only

Install the agent, see your system live in real time, and get email alerts when Sentinel spots a fault. No historical graphs, no settings changes on this tier — but it's free, forever.

  • Local agent on your PC or Pi
  • Live dashboard — real-time power flow
  • Email alerts when faults are detected
  • Today's data, in-memory only (resets when idle)
Install Watch free

Guard

£1per month · self-serve control + 12-month historical graphs

Everything in Watch, plus full historical graphs (12 months of stored data), self-serve settings changes — charge slots, target SoC, modes — from anywhere on any device. Cancel anytime.

  • Everything in Watch
  • Historical graphs — 12 months of data
  • Self-serve settings (charge slots, target SoC, modes, export limit)
  • Mobile-friendly dashboard from anywhere
  • Faster polling — 5-second refresh
Get Guard — £1/mo
Pricing FAQ

Common pricing questions

Because we want as many GivEnergy customers as possible monitored — if your system develops a fault, our engineers see it before you do, and we can offer to fix it. Sentinel is a loss-leader for our diagnostic and remedial work. Honest answer: free monitoring grows the business that actually makes the money.
Yes — no contract, no minimum term. Cancel from your dashboard; you keep Watch (free) forever. We don’t hold your data hostage either: export to CSV any time, even after cancelling.
Guard (£1/mo) lets you change your own settings whenever you want. Settings change (£25/request) is for one-offs when you’d rather an engineer made the change for you — maybe you’re not sure what to change, or it’s a tricky Octopus tariff. Pick whichever fits.
Only for Guard subscriptions (via Stripe). Diagnostic and Settings change are paid per request — we email you a Stripe link, you pay when the work is done. No card on file unless you choose Guard.
We’ll honour the price you signed up at for at least 24 months. If costs change after that, we’ll email you 60 days before any change — plenty of time to cancel. We’d rather keep prices stable forever; we sized the model assuming that.
Ready when you are

Install Sentinel free. Upgrade only when you need to.

No card on file unless you choose Guard. No contract. No surprise renewals.

  • Watch is free forever
  • Guard is £1/mo, cancel anytime
  • Engineer services billed per request
  • Stripe-secured payments