Wearable energy / visual field note / August 2026

Solar cooling clothing

A broad photovoltaic hat and black technical layers conceived as one personal energy system: shade first, electricity second, targeted airflow when heat load peaks.

Traveler in black technical clothing wearing a broad photovoltaic hat with a power module and active ventilation
BLP 003 / WEARABLE ENERGYCONCEPT / 2026
Status
Visual concept
Collector
Photovoltaic hat brim
Storage
Removable battery pack
Cooling
Head and torso airflow
Priority
Shade before refrigeration

01 / The proposition

Wear the collector where sunlight is strongest.

The wide brim is both a passive heat-control surface and the largest practical photovoltaic area on the body. Its segmented cells shade the head, face and shoulders while feeding a regulated low-voltage bus. Black outer fabric is selected for durability and light management, but it is kept away from the skin by ventilated spacer layers.

The system does not try to air-condition a person. It spends a small solar budget exactly where evaporation and airflow matter most.

02 / Energy and cooling loop

01

Photovoltaic brim

Radial cell segments tolerate curvature and partial shade. Maximum-power-point control stabilizes their variable output while the wearer moves.

02

Buffer and distribution

A removable battery stores surplus energy. A protected low-voltage bus prioritizes cooling, then sensors, communications or charging.

03

Head cooling

Micro-blowers in the crown move air across a spacer liner and exhaust warm, humid air around the brim without sealing the head.

04

Garment airflow

Low-profile fans pulse air through collar and torso channels; moisture-wicking inner layers spread evaporation across a larger surface.

03 / Limits

Solar area is useful, not limitless.

Available power falls with shade, dust, panel angle and cell temperature. A wearable collector can realistically support efficient fans and electronics, but sustained thermoelectric or compressor cooling would demand more area and battery mass. The broad brim adds wind load; wiring must survive flexing and sweat; batteries need impact, water and thermal protection. Black fabric also raises absorbed heat unless reflective coatings, air gaps and continuous ventilation offset it. The concept therefore remains an aid to shade, hydration and work-rest discipline—not a substitute for them.

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