FluxSignals watches live electricity prices 24/7 and automatically charges your battery when it's cheap — or free. Sometimes the grid even pays you.
💰 Typical saving: £30–45/month · Subscription: £15/mo · Pays for itself in the first week.
How it pays for itself
Electricity prices change every 30 minutes. FluxSignals acts on them automatically — no schedules, no guessing.
On Octopus Agile, prices dip to near-zero — or even negative — multiple times a week. FluxSignals detects these windows and charges your battery automatically. You sleep. It saves.
Negative price events happen 3–4 times per month on average. When they do, the grid is literally paying you to consume electricity. FluxSignals charges your battery and captures that value.
FluxSignals EMS Pro learns your consumption patterns, reads weather forecasts, and makes smarter decisions every day — without any manual scheduling. It works with or without solar.
Savings calculator
Tell us about your setup and see your estimated monthly return.
Your estimated monthly saving
From battery optimisation
£35
Subscription
£15
Net monthly profit
£20
Based on a 5 kWh battery on Octopus Agile. Estimates assume avg 3–4 cheap/negative windows per month. Actual savings vary.
Estimates are illustrative. Results depend on your tariff, battery size and usage patterns.
Products
Start with full visibility. Upgrade to full automation.
Real-time inverter dashboard for your home
Automated battery management that pays for itself
💰 Typical monthly result
Getting started
No Python. No command line. No configuration files.
Connect the cable
A standard USB printer cable (USB-A to USB-B) between your PC and the inverter's USB port. No extra hardware needed.
Run Flux Monitor
Download and double-click flux_monitor.exe. No installation. A setup wizard guides you in under a minute.
● Inverter connected
● ECO5000W detected
● Dashboard → localhost:5001
Open on any device
Navigate to your PC's local IP in any browser. Works on phone, tablet or laptop. Use Tailscale for secure remote access from anywhere.
📱 Mobile · 💻 Desktop · 📺 Any screen
🔒 Tailscale remote access — no port forwarding
App preview
Every metric your inverter knows — displayed clearly, updated live.
Click to enlarge
⚡ Live Dashboard
SOC, solar, load, battery, grid state and output priority. Updates every 5 seconds.
📈 History Charts
7-day power charts at 30-min resolution with Agile electricity price overlay.
☁️ Solar Forecast
3-day PV generation forecast by location. Live electricity tariff display.
Compatibility
Confirmed with the ECO-WORTHY ECO5000W(SR) — a Voltron / Srne platform clone. Many inverters share this Modbus protocol and will likely work.
Connect via ⑦ USB Communication Port
USB-A to USB-B printer cable. RS485 port ⑥ identified — not yet tested.
ECO5000W(SR) — Confirmed
⚠ Other Srne / Axpert / Voltron inverters may work
Compatibility reports welcome — especially from other inverter models.
[email protected]Roadmap
Flux Monitor is the foundation. Full energy autonomy is the destination.
Real-time inverter dashboard. SOC, solar, load, grid, output priority, 7-day history, solar forecast, electricity price tracking.
Self-learning system that monitors consumption, weather and live prices — automatically controls grid, solar and battery to maximise savings and self-sufficiency.
Native iOS and Android app with push notifications and remote control.
Expanding beyond Srne / Voltron to support more inverter manufacturers.
Get started
No hubs. No sensors. No config files.
Just plug in and start saving.
✓
No cloud
✓
No account
✓
No installation
✓
Windows 10/11
Free · v0.1 beta · Windows 10/11 · 16 MB
Support & Feedback
Bug reports, compatibility notes, feature requests — all welcome.
Especially interested in users with other Srne / Axpert / Voltron inverters.
fluxsignals@gmail.com
Please read before downloading
Flux Monitor is provided free of charge, as-is, with no warranty of any kind.
By downloading you confirm that:
Runs entirely on your local network. No data transmitted externally.
Please read before downloading
Flux EMS Pro is provided free of charge, as-is, with no warranty of any kind.
By downloading you confirm that:
Runs entirely on your local network. No data transmitted externally.