Key Challenges for the Region
High Wind Exposure: Severe straight-line winds can cause extensive damage to solar panels and tracking systems, threatening both physical assets and power generation.
PPA Exposure: When severe weather reduces generation capacity, solar operators can face immediate PPA under-delivery penalties, particularly when SCS events are excluded from Force Majeure provisions.
Insurance Gaps: High deductibles, sub-limits and lengthy waiting periods under traditional property and business interruption policies can leave operators exposed to significant out-of-pocket costs and cash flow shortfalls.
Key benefits of parametric insurance
Straight-line wind events can create interconnected physical and financial losses for utility-scale solar assets. Damage to panels and trackers can reduce generation for months, while traditional insurance structures may leave operators responsible for large deductibles and uncovered business interruption or PPA-related losses.
Descartes’ Parametric Straight-Line Wind Insurance: Fast Liquidity for Solar Asset Recovery
Descartes’ parametric straight-line wind solution uses site-level wind speed data collected from Nextpower’s meteorological stations to measure the severity of an event directly at the insured solar plant. By using hyper-local data to trigger the coverage, the solution helps reduce basis risk and provides rapid liquidity without waiting for traditional physical loss adjustment.
case study example
Parametric Straight-Line Wind Solution for a Solar Plant in Texas
A Texas solar plant with a $150 million total insured value (TIV) was covered by a traditional policy with a 5% wind and hail deductible. Its Power Purchase Agreements also excluded severe convective storm events from Force Majeure provisions. When a spring derecho brought straight-line winds exceeding 100 mph, the plant experienced significant physical damage and a prolonged reduction in power generation.
Problem
The derecho damaged trackers, shattered 20% of the solar panels and reduced power output by 40% for three months. With physical damage totaling $30 million, the operator was responsible for the first $7.5 million before receiving traditional insurance indemnity. The reduction in generation also triggered PPA penalties, while sub-limits and waiting periods under the traditional Business Interruption coverage created additional cash flow pressure.
Solution
Descartes’ parametric solution used site-level wind speed data from Nextpower’s meteorological stations to capture hyper-local conditions at the solar plant. When on-site anemometers recorded the triggering wind parameter during the 100+ mph derecho, Descartes confirmed the event and calculated the payout based on the predefined wind speed structure.
Result
The operator received an $8 million payout within weeks, representing 16% of the $50 million insured limit. The liquidity helped absorb the $7.5 million traditional deductible, cover PPA capacity penalties and emergency operational expenses, and bridge revenue shortfalls while repairs were underway.

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