Panel manufacturer
Tesla Solar performance guide
Tesla's solar panels and Solar Roof tiles are among the most recognizable in the residential market. Performance is generally competitive with tier-1 monocrystalline panels, but some owners report inverter and monitoring software issues.
Expected lifespan
25 years
Warranty
25 years
Market share
high
Type
panel
Known for
Integrated Powerwall battery, Solar Roof tiles, sleek aesthetics
Common issues with Tesla Solar
Natural panel degradation
All solar panels lose efficiency over time at roughly 0.5–0.8% per year. Accelerated in extreme heat or poorly manufactured panels.
Typical loss: 3–15%
Inverter efficiency loss
Degradation or malfunction in the inverter reducing DC-to-AC conversion efficiency. Often indicated by error codes or unexpected shutdowns.
Typical loss: 5–25%
Cell hotspots
Localised overheating in individual cells caused by micro-cracks, shading, or manufacturing defects. Best detected via thermal imaging.
Typical loss: 5–20%
Check your Tesla Solar system
Use our free Solar Loss Checker to estimate how much energy your Tesla Solar system may be losing.
Check my systemBased on conservative solar performance modelling and published degradation data
Updated April 2026 · Structured performance modelling
How we calculate →