San Francisco airport bans sale of plastic bottles

San Francisco International Airport is banning the sale of single-use plastic bottles and will require fliers to buy refillable bottles if they're not already carrying their own, US media reported on Friday.

How to build a moon base

Half a century after humans first walked on the moon, a number of private companies and nations are planning to build permanent bases on the lunar surface. Despite the technological progress since the Apollo era, this will ...

First of two Van Allen Probes spacecraft ceases operations

On July 19, 2019, at 1:27 p.m. EDT, mission operators sent a shutdown command to one of two Van Allen Probes spacecraft, known as spacecraft B, from the Johns Hopkins University Applied Physics Lab, or APL, in Laurel, Maryland.

Video game designer establishes lab for renewable energy

A Dutch video game designer and entrepreneur has established a laboratory on the Big Island that is focused on developing alternatives to fossil fuels for energy, the Hawaii Tribune-Herald reported.

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Photovoltaic module

A photovoltaic module or photovoltaic panel is a packaged interconnected assembly of photovoltaic cells, also known as solar cells. The photovoltaic module, known more commonly as the solar panel, is then used as a component in a larger photovoltaic system to offer electricity for commercial and residential applications.

Because a single photovoltaic module can only produce a certain amount of wattage, installations intended to produce larger electrical power capacity require an installation of several modules or panels and this is known as a photovoltaic array. A photovoltaic installation typically includes an array of photovoltaic modules or panels, an inverter, batteries and interconnection wiring.

Photovoltaic systems are used for either on- or off-grid applications, and for solar panels on spacecraft.

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