GridReady WNY Guide
Existing system repair / orphaned installsHow to know if your solar system is performing normally
Daily production swings are normal. Sustained underperformance, repeated inverter faults, or dead strings are not. This guide gives you a fast triage framework before you start calling people.
Reviewed for Western New York homeowners with snowy winters, mixed roof conditions, and utility-service constraints.
Quick answer
- One low day is usually weather; two to four weak weeks in similar weather is investigation territory.
- Use monthly and year-over-year comparisons, not single-day screenshots.
- Check inverter status, string-level production, and monitoring uptime before calling support.
- Call the manufacturer for hardware/warranty workflow, installer for workmanship, and electrician for safety risks.
Who this guide is for
- Homeowners with an existing solar array and monitoring app access.
- Anyone seeing a sudden drop in production and trying to avoid panic-service calls.
- Owners of older installs where original assumptions may no longer be true.
Why this matters in WNY
- WNY winter cloud cover and short days can make normal systems look weak in January.
- Snow shedding behavior varies by roof pitch and orientation, causing uneven recovery across arrays.
- Tree growth and older roof geometry create shading drift over time.
What "normal" actually means
Normal is not a perfectly smooth production curve. Normal is an expected band that shifts with:
- season
- weather
- snow coverage
- shading patterns
- monitoring uptime
If your system still lands near expected monthly output over time, you are usually fine.
Myth
If my app chart is lower than last week, something is broken.
Reality
Short-term dips are usually weather or snow. Persistent gaps in similar conditions are what matter.
Performance triage rubric: likely normal vs investigate vs urgent
| Tier | What you see | What it usually means | Next action |
|---|---|---|---|
| Likely normal | Day-to-day volatility, winter drops, full recovery after storms | Seasonal/weather effect | Track monthly output, no emergency |
| Investigate | 15-30% sustained drop vs prior comparable periods, one string lagging, repeated monitoring gaps | Possible shading growth, failed optimizers, communication issue | Gather data and open a support case |
| Urgent | Inverter offline, burning smell, water intrusion, arcing sounds, repeated breaker trips | Electrical safety risk | Stop guessing, call qualified electrician/service immediately |
Before-you-call data checklist
Step 1
Confirm monitoring health
Verify the app is updating and timestamps are current. A stale app can mimic system failure.
Step 2
Check inverter and combiner status
Record any warning/error codes and whether all strings are reporting current.
Step 3
Use comparable windows
Compare this month vs same month last year, and similar weather windows, not random days.
Step 4
Document shading/snow context
Take photos of roof conditions and nearby trees at roughly the same time of day.
Step 5
Capture bill + production together
Save recent utility bills and monthly kWh output before opening a support ticket.
Weather vs true system problem
The fast rule: weather causes broad, temporary dips; hardware issues create persistent asymmetry.
- If all strings dip together during storms and recover together, that is usually weather.
- If one section of array keeps lagging in clear conditions, suspect hardware or shading localized to that section.
- If the inverter is intermittently offline, you may have communication, firmware, or grid-voltage events that need support review.
Who to call first (and why)
Right next call by issue type
| Category | Call this first | When this is the right call |
|---|---|---|
| Manufacturer support | Inverter or battery OEM | Fault codes, hardware alerts, warranty RMA workflows |
| Installer/service contractor | Original installer or reputable service team | Workmanship, roof penetrations, wiring layout, commissioning quality |
| Independent electrician | Licensed electrical contractor | Safety concerns: overheating, arcing, breaker trips, water ingress near electrical gear |
Stop-and-call-now red flags
- Burning smell, buzzing, or visible scorching near inverter/panel.
- Frequent main breaker trips after the solar system had been stable.
- Water intrusion around electrical equipment or combiner boxes.
- Any exposed conductors or damaged conduit after storms.
What to do next
What to do next
- 1
Run a quick benchmark
Use the performance tool to classify your system into likely normal / investigate / urgent.
- 2
Package your data
Keep one folder with bills, screenshots, error codes, and install paperwork before contacting support.
- 3
Escalate smartly
Start with manufacturer for hardware errors, installer for workmanship, electrician for safety.
Recommended tool
Use the benchmark tool to pressure-test whether your current output looks normal for your context.
Open Is my solar performing normally?Related reads
- Installer disappeared? What to do next
If support ownership is unclear.
- Does solar work in Buffalo winters?
Set realistic winter expectations.
- Your panel might be the bottleneck
When performance issues are really electrical constraints.
FAQ
Is one bad week enough to call for service?
Usually no. Start with weather, monitoring uptime, and month-over-month context. If the drop persists in similar weather windows, escalate.
Should I call my installer or manufacturer first?
If there is a fault code tied to inverter or battery hardware, manufacturer support can often open the right warranty path quickly.
Can snow alone explain near-zero production?
Yes, temporarily. But production should recover after clearing periods or melt events; persistent zero output needs investigation.