Published 14 October 2026 · Source-linked research prepared with AI assistance. Proposed services require an agreed scope and qualified delivery team.
Start with the installed equipment
Collect the module and tracker specifications, warranty conditions, applicable test records and the owner-approved hail procedure. A generic stow angle is not appropriate for every installation. Wind conditions, tracker geometry, controls and equipment limits can change the acceptable action.
Verify the complete response path
Review how the operator receives the relevant information, who authorizes action and how commands reach the asset. Confirm timing, power and communications dependencies, feedback and fallback. A dashboard command is weaker evidence than a record showing that the required configuration was achieved across the defined asset group.
Use existing technology without overclaiming
DOE describes hail mitigation considerations for photovoltaic systems, and vendors already offer hail-response capabilities. Weatherhill’s proposed role is an independent evidence and readiness review. Vendor announcements establish what is offered; they do not independently prove the loss reduction a particular customer will achieve.
Plan for inspection and learning
Define the authorized inspection sequence after an event, preserve warnings and response records, and record verified damage separately from radar-estimated hail exposure. Update actions when tests fail or equipment changes. A readiness score can track demonstrated controls while leaving hail frequency and severity in the separate exposure profile.
Sources & further reading
- Hail Damage Mitigation for PV Systems ↗Current guidance checked 2026-10-14. Use OEM-approved procedures and qualified electrical/solar professionals. Do not prescribe one stow angle for all plants, operate trackers, certify hail resistance or promise avoided losses.
- NX Horizon Hail Pro ↗Current vendor page checked 2026-10-14. Use to document competition and capabilities offered, not independent validation of damage-reduction marketing claims.
- NOAA NCEI Event Footprint Catalog ↗Radar-derived hail footprints at about 1 km; data-source and latency limitations.