What mySolarEdge already does well
mySolarEdge is SolarEdge's own monitoring app, and it's free for system owners. It's a genuinely solid tool for what it does: real-time and historical generation/consumption, remote EV charging control if you have a SolarEdge charger, and - its real strength - a per-panel, per-optimizer view that can flag an underperforming module directly, something Wattlas doesn't attempt. It does need your installer to grant you monitoring access, and a separate consumption meter for the usage side, but once that's set up it's a capable, well-built app.
What it doesn't do, and what Wattlas adds
mySolarEdge shows you what happened. It doesn't build an independent forecast of what should have happened and flag the gap - that's the specific job Wattlas does. Free builds a forecast from your system's own spec (panel capacity, orientation, tilt) and live weather, with no SolarEdge connection needed at all. Plus adds a live read of your real SolarEdge system on top, compares it against that forecast day by day, and alerts you the moment the two drift apart - a shortfall from a fault or shading, not just a stat you'd have to notice yourself. Wattlas also isn't SolarEdge-only: the same account can cover a battery, an energy supplier's real tariff for a proper cost breakdown, and an EV charger from a different brand entirely, in one place.
Wattlas vs mySolarEdge
| Wattlas | mySolarEdge | |
|---|---|---|
| Price |
Free tier, plus for Plus: |
Free |
| Forecast vs. actual, with alerts | Yes - the core of the app | No - shows real-time/historical data, not a forecast comparison |
| Per-panel/optimizer diagnostics | No | Yes - a genuine SolarEdge strength |
| Covers other brands in one account | Yes - battery, tariff, and EV charger brands beyond SolarEdge | No - SolarEdge hardware only |
| Setup | Self-serve sign-up | Needs your installer to grant monitoring access |
Which one should you use?
Realistically, both - they're not solving the same problem. mySolarEdge is the right place for panel-level fault diagnosis, since Wattlas doesn't have that view into your system. Wattlas is the right place for "is this actually performing the way it should be," a forecast-based check mySolarEdge doesn't do, plus a single view if your setup includes a battery, a different-brand EV charger, or you just want your real cost broken down by your actual tariff.
Sources
SolarEdge - mySolarEdge: Monitoring App for System Owners
SolarEdge US - mySolarEdge product page
The SolarEdge logo is a trademark of its owner and is shown only to
identify the company. Wattlas isn't affiliated with SolarEdge.
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