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New Solar Power Plant Combines Photovoltaic and Thermal Technologies with Fossil Fuel Backup

· Confirmed

Science Desk

In Short: A 1 megawatt solar power plant integrates photovoltaic and concentrated solar thermal technologies, featuring a fossil fuel backup system.

A new 1 megawatt solar power plant has been designed to incorporate both photovoltaic and concentrated solar thermal technologies, with a unique twist: it includes a fossil fuel backup system.

The plant, which will be extremely small at 1 megawatt, mixes in photovoltaics and concentrated solar thermal energy. Most of the site is covered with heliostats, devices that incorporate mirrors and a motorized tracking system to focus sunlight on a single point as the Sun moves across the sky.

The hot fluid generated by the concentrated solar thermal system can then be used to power a traditional steam turbine, or its heat can be stored and used to generate power overnight.

The fossil fuel backup system shares most of the generating hardware with the solar side, allowing the plant to run on either stored solar heat or combustion.

According to von Keszycki, adding the capability to burn fossil fuels tacks on less than 10 percent of the total cost.

The plant design allows it to switch between solar and fossil fuel power seamlessly, providing a reliable energy source even during periods of low solar resource.

While concentrated solar energy had a promising future due to improvements in heat storage, the price of photovoltaics has since plummeted, making solar panels the cheapest source of power in most locations.

The backup system can use a variety of fuels, including fossil fuels, to generate power during times of low solar resource, such as long-duration bad weather.

This innovative approach addresses the challenge of maintaining a stable power supply when solar generation is insufficient, providing a robust solution for energy security.

The plant's unique design demonstrates the potential for integrating renewable and traditional energy sources to ensure a continuous and reliable power supply.

The integration of photovoltaic and concentrated solar thermal technologies, along with a fossil fuel backup, represents a significant step forward in the development of sustainable and reliable energy systems.

Background

A new 1 megawatt solar power plant has been designed to incorporate both photovoltaic and concentrated solar thermal technologies, with a unique twist: it includes a fossil fuel backup system.

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