Tide tables for your energy.

Electricity prices and solar output rise and fall on a predictable rhythm. Suntide publishes the timetable, times your solar and battery to it, and proves the result — every five minutes, every statement, whoever made your inverter.

Today at a Suntide household demo data
cheap window 00:30–04:30 peak battery 100% 00:0006:0012:0018:00 24:00
£4.03 earned by the system today
24.4 kWh solar generated
99% battery at the evening peak

The accountability your £10,000 system never came with

Most solar and battery owners have no idea whether their system is set up well. Suntide is a loop, not a dashboard:

1 Measure and assess

Suntide reads your inverter every five minutes and scores your configuration against what matters to you — lower bills, export income, self-use, battery lifespan, or backup readiness.

2 Recommend and verify

Each finding is a plain-English problem with its cost in pounds and exact fix steps. Apply the fix, press “verify”, and Suntide checks the next days of data to confirm it worked — with the before and after.

3 Report

A monthly energy statement shows what your system earned against a home without one, benchmarks your tariff against the market, and tracks battery health. Alerts arrive the moment something is wrong, not at month end.

What Suntide checks, and what it costs you when it's wrong

These aren't hypotheticals — they're the rules the health engine runs nightly against your configuration and your data, each priced at your tariff's actual rates.

  • Charge window misses your cheap rate often £10–20/mo
  • Battery empties before the evening peak ends often £10–25/mo
  • Solar export clipped at the limit while export pays seasonal, up to £5–15/mo
  • Battery reserve fighting your goal locked-away capacity
  • Full-to-empty cycling against a longevity goal battery years
  • Battery full hours before the cheap window closes gentler charging, free
  • Not selling from the battery on a strong export rate a considered suggestion
  • Inverter clock drift shifting every schedule silent misalignment
  • Stale data — nothing heard from your system flagged within hours
From a configuration health check demo data
High Charge window misses your cheap rate £14.40/mo

Your battery's charge window is not lined up with your tariff's cheapest period.

Every kWh charged outside the cheap rate is bought at day prices — the difference is pure waste, night after night. Right now: about 3.0 kWh a day at the wrong price.

  1. Open the Solis app and go to Settings → Battery → Charge/Discharge schedule.
  2. Set the charge window to match your cheap-rate period exactly.
  3. Save, then confirm the schedule shows the new times.
I’ve applied this — verify it Suntide then watches the next days of data and confirms the fix worked — with the before and after.

Recommendations come with the fix steps for your inverter's own app — then Suntide verifies from the data that the change actually worked. No other tool closes that loop.

Numbers you can check

Ask solar-app users what breaks their trust and the answer is always the same: figures that don't add up. Suntide is built on the opposite discipline:

The table is the truth

Every chart on a statement reconciles against a table on the same page, and the statement reconciles against your meter. If a number is an estimate, it says "estimate" — clipped solar is inherently estimated; your import isn't.

Honest about gaps

When the manufacturer's cloud goes quiet, Suntide says so — a "refreshed 12 minutes ago" stamp on every live number, an alert when it turns into an outage, never a silently frozen dashboard.

No solar? First-class.

Battery-only homes doing tariff arbitrage are some of the best-earning systems we watch. Suntide adapts to what you actually have — it never shows you phantom panels.

Proof, monthly

Every month, a statement your household can actually read: what the system earned, what it would have cost without it, and whether a better tariff exists for the way you actually use power.

When something needs attention — a mistimed charge window, a battery that never fills — it appears here with its cost attached.

Energy statement August 2026 · sample
demo data
Your electricity cost this month£-47.82
Same month with no solar or battery£70.32
Your system earned£118.20
Solar generated732 kWh
Exported to the grid554 kWh
Tariff benchmarkAgile: £129.20
Battery health trendsteady
Configuration score86 / 100

The benchmark line reads: on Octopus Agile, this household's battery would have earned £11.00 more than on its current tariff. Statements say so plainly — and say nothing when a switch isn't worth it.

Supported today

Solis inverters

Hybrid and storage systems via the SolisCloud API. Setup walks you through requesting API access from Solis — and demo mode keeps you busy while they enable it.

Suntide for Solis →

GivEnergy systems

Connected through your GivEnergy API token today; the Suntide Link local device is in development so your monitoring never depends on their cloud — or their pricing.

Suntide for GivEnergy →

Tariffs

Octopus tariffs including Agile are built in, with Australian market data next. Any other tariff, anywhere in the world, is described in a minute on the 24-hour dial.

Another inverter brand? Join the waitlist and name it — brand demand decides what Suntide supports next.

Pricing

Watch

£3.99/month

  • Five-minute monitoring, independent of any manufacturer app
  • Instant alerts — offline inverter, missed charge window, clipped export
  • Weekly digest and monthly energy statement
  • Bill check on every statement
Start free trial

Suntide Link

£29 · free with annual Optimise

  • A small device that reads your inverter over your own network
  • Monitoring that keeps working whatever happens to a manufacturer's cloud — or its pricing
  • One subscription, not two

In development — waitlist members hear first.

30-day free trial. No card up front. Prices include VAT.

Be first on the water

Suntide is in build. Join the waitlist and we'll email you when it opens for your inverter — and nothing else.