Nuno Pragana
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A beautiful cabin on Holmes Harbor in Langley, Washington.

This beautiful, 528 sq ft cabin sits on a acre lot in Langley, Washington (just outside of Everett). It sits right by the water on Ho.

100W/200W/300W/400W/500W/1KW Semi Flexible Mono Solar Panel Battery System

Semi Flexible Mono Solar Panel Battery System in Home & Garden, Home Improvement, Electrical & Solar

Solar System Schematic

Solar System Schematic

Smart LED | Most Energy Efficient Home Lighting Solution | Solatube

The only LED commercial lighting system to unite energy-efficient LEDs with natural lighting. Maximum energy efficiency for sustainable designs.

Heating and Cooling with a Solar Chimney

Heating and Cooling with a Solar Chimney. When venting house, hot air is sucked out from under ceiling and fresh air enters house at floor level.

Avenida João XXI em construção, 1950 (Direção ponte), Judah Benoliel

Avenida João XXI em construção, 1950 (Direção ponte), Judah Benoliel