After the hail
Targeted inspections
Modules are tested to IEC 61215 with 1 in (25 mm) hailstones. The alert shows location, track and class, so you can plan inspections for the systems in the track.
Solar & PV
Hail damage to PV modules is often invisible from the ground.
HailSignal shows which systems were in the hail track. Inspect where the hail came close to the modules’ test limit.
A free account is enough to see the map.
What you get
Before the hail
Solar parks: watch the track
When a track is heading for your park, the alert shows direction, speed and an arrival hint. Trackers with a hail stow position can then be moved into it, if there is enough time.
Document
Evidence for owners and insurers
Each track has an evidence page and a PDF with time, area, confidence level and sources.
Recommended settings
A suggestion for your first rule. You can change every value later.
- Alert from class
- Class 2 – from 0.8 in (20 mm)
- Area
- 60 mi (100 km) around your business; a separate rule for each solar park
- Alert from confidence level
- C2 – sufficient radar evidence
- Channels
- Email and web push. SMS is not available.
Rules and alerts come with the annual subscription.
What an alert looks like
HailSignal · Hail
🇺🇸 United States · near Plano, TX
Hail size estimated up to ~2.4 in (61 mm; radar, class 4 of 4).
Confidence C2: sufficient radar evidence
Moving northeast at 26 mph.
Track: Plano → Allen → McKinney
On its current track the cell reaches your base in ~25 min.
What to check: Module glass and cells of systems in the track; modules are usually only tested up to 1 in (25 mm) hail, micro-cracks are invisible from the ground.
The arrival line only appears when the track is heading for your base.
Honest limits
- Germany without hail size The German Weather Service hail flag says “hail possible” or “large hail possible”, but gives no millimetres.
- Switzerland from April to September Swiss hail radar: 1 April to 30 September. Outside this season, this source provides no current hail estimates. Germany (DWD) and the US radar feed are not affected.
- Arrival hint without guarantee It only appears when the track is heading for your base and is stable enough. Cells turn, collapse or form anew.
- No damage confirmation on site Radar is an indication, not proof. Only an inspection on site shows whether something is damaged.
- Coverage Germany, Switzerland with border areas and the contiguous United States. Alerts start at class 2, from 0.8 in (20 mm).
One annual plan for every trade
$339 per year
Excl. applicable taxes
12 months from purchase, paid annually in advance. Automatically renews for another year unless cancelled before renewal.
A free account shows the storm map with every hail track up to 24 hours ago, plus the strongest hail days. Current tracks and alerts come with the annual subscription.