Most Cost Effective Solar Power Systems: Double-Sided Panels That Follow the Sun

"Solar power systems with double-sided (bifacial) solar panels — which collect sunlight from two sides instead of one — and single-axis tracking technology that tilts the panels so they can follow the sun are the most cost-effective to date, researchers report June 3rd in the journal Joule. They determined that this combination of technologies produces almost 35% more energy, on average, than immobile single-panel photovoltaic systems, while reducing the cost of electricity by an average of 16%"

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