According to the most recent data from the World Bank, 15 percent of the world’s population—approximately 1.1 billion people—lacked access to electricity in 2014. In 1994, approximately 27 percent of ...

The common home solar power system, in principle consists of a roof-mounted solar panel, a charge controller and a storage battery bank plus direct or electronic inverter powered electric lighting ...

Our solar system is a passenger on a galactic rollercoaster. Part 2 reveals how the Sun, carrying Earth, orbits the Milky Way's core at 491,000 mph, completing a circuit every 230 million years. We ...

This solar birdhouse light is an economical circuit of a mini solar lighting system circuit is presented here. At the heart of the circuit is a mini 6V/2W solar panel. Here, this solar panel is used ...

Article 690 covers solar installations, except large-scale ones (those are covered in Article 691) [Sec. 690.1], as shown in Fig. 1. There are three important definitions: “Photovoltaic (PV) system” ...

What is the PV-Pushback-Effect? How can solar day lamps (SDLs) take advantage of this effect? Solar day lamps (SDLs) are made by simply connecting an LED array to a solar photovoltaic (PV) panel. SDLs ...

Perhaps you’re dreaming of obtaining your home’s electricity without having to rely on that provided by your town or city. If so, you’re hoping to go “off the grid.” And if that’s your dream, you’ve ...

Part II of Art. 690 provides the circuit requirements for PV systems. The first requirement it covers is the maximum PV system direct-current (DC) circuit voltage. This value is used when selecting ...