Energy & Green Tech

Long-haul trucking meets megawatt-scale charging

Transitioning long-haul trucks from diesel to electric power will require convenient ways to rapidly recharge electric vehicle batteries at power-plant scale. Researchers at Oak Ridge National Laboratory have designed architecture, ...

Engineering

Researchers 'shift the sun' to improve solar cells

Solar cells are a key feature of creating a sustainable energy ecosystem for the future. Existing solar arrays and cells can produce clean energy from the most abundant source in nature. But increasing their efficiencies ...

Engineering

Modeling light for solar panel placement in urban settings

Solar panel installation in cities requires setups tailored to the complex geometry of urban spaces that provide the most direct sunlight to each panel. Among the processes for designing the most efficient setup is shadow ...

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Photovoltaic array

A photovoltaic array is a linked collection of photovoltaic modules, which are in turn made of multiple interconnected solar cells. The cells convert solar energy into direct current electricity via the photovoltaic effect. The power that one module can produce is seldom enough to meet requirements of a home or a business, so the modules are linked together to form an array. Most PV arrays use an inverter to convert the DC power produced by the modules into alternating current that can plug into the existing infrastructure to power lights, motors, and other loads. The modules in a PV array are usually first connected in series to obtain the desired voltage; the individual strings are then connected in parallel to allow the system to produce more current. Solar arrays are typically measured by the peak electrical power they produce, in watts, kilowatts, or even megawatts.

This text uses material from Wikipedia, licensed under CC BY-SA