Meteoric launches with cloud-clearing drones and a 30% solar claim

The YC startup has a chamber prototype; its first large-scale cloud-clearing flight is targeted for 2027.

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Primary source: X

Why it matters

Meteoric is betting solar owners will pay to modify the sky rather than wait years for new grid connections. Field performance and airspace approvals will test its 10-30% model.

Meteoric launches with cloud-clearing drones and a 30% solar claim

Mete Karslioglu (@MeteKarsli0glu) and Eric Nilsson (@eric_nilsson_) launched Meteoric on August 21st with a plan to fly autonomous drones into clouds above solar farms and make more sunlight reach the panels below.

The San Francisco startup, part of Y Combinator's Summer 2026 batch, says the system could raise annual electricity generation at existing utility-scale solar plants by 10% to 30%. That figure comes from Meteoric's own cloud-loss model rather than field operations. The startup's current physical evidence is a prototype that it says dissipated an artificial cloud by 13% inside a cloud chamber.

Meteoric is targeting its first large-scale cloud-clearing flight in 2027, according to its Y Combinator launch page. Its first attempt to operate around a storm is scheduled for late 2028.

Karslioglu, Meteoric's CEO, previously developed seawater spray nozzles intended to make clouds more reflective at the Cambridge Centre for Climate Repair. He studied aerospace, energy and mechanical engineering at the University of Cambridge. Nilsson, Meteoric's CTO and another Cambridge engineering graduate, researched microfluidic control chips and built systems for removing droplets from LiDAR lenses.

Their new project reverses the objective of Karslioglu's earlier cloud-brightening work. Meteoric wants to reduce the reflectivity of low and mid-altitude clouds so more solar radiation passes through them.

From a chamber to the open sky

Meteoric says eventual deployments would use fleets of tens to hundreds of electric drones flying into clouds between 1 and 5 kilometers above a solar plant. The drones would alter the droplets forming the clouds without spraying chemicals, reducing the amount of sunlight reflected away from the ground.

In his launch thread on X, Karslioglu put the projected annual output gain at 10% to 30%. Meteoric's website breaks that estimate down by grid region, ranging from 10% in the Northwest to 30% in New York's grid territory. Meteoric labels those figures as the maximum estimated uplift based on modeled cloud types.

The distinction matters. Meteoric has demonstrated a partial effect in a controlled artificial cloud, while the revenue case assumes that fleets can identify suitable natural clouds, reach them safely, modify enough of their area and repeat the process economically across a plant's operating life.

The underlying sales pitch is timed to a real constraint in the US power market. Lawrence Berkeley National Laboratory counted 773 GW of solar projects in interconnection queues at the end of 2025. Only 13% of all proposed generation capacity entering those queues from 2000 through 2020 had reached commercial operation by the end of 2025. Solar owners therefore have a financial reason to extract additional electricity from plants that are already connected.

Meteoric estimates its modeled uplift would be worth roughly $5,000 to $28,000 per megawatt annually. It has not published field data showing that the drone system can produce those gains.

The airspace is part of the engineering problem

Meteoric's planned flights sit well outside routine US commercial drone operations. Standard Federal Aviation Administration Part 107 rules generally cap drones at 400 feet, require visual line of sight and restrict operations close to clouds. A pilot also cannot supervise multiple drones simultaneously under the standard rules.

The FAA allows operators to seek waivers for flights beyond visual line of sight, above 400 feet, near clouds and involving multiple aircraft. A fleet entering clouds at 1 to 5 kilometers would need an operating and safety case built around those approvals, alongside the hardware itself.

US law also defines intentional artificial changes to the atmosphere as weather modification. Operators must file reports with the Commerce Department before, during and after covered activities under the federal weather modification reporting statute.

Meteoric's longer-term hurricane ambition faces a higher scientific bar. The World Meteorological Organization says there is no generally accepted evidence that tropical cyclones can be modified. The organization also warns that the energy inside severe weather systems makes dramatic intervention claims scientifically suspect.

Karslioglu and Nilsson are starting with stable overcast clouds because they offer a bounded commercial test: a specific area, a measurable solar output and a customer that can calculate the value of additional sunlight. Meteoric's 2027 flight will show whether its chamber result can survive the scale, variability and regulatory demands of an actual sky.

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