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Innovative mirrors key to next generation CSP system

Great Falls, VA, USA  247Solar Inc., developer of the breakthrough 247Solar Plant™, today announced that it has signed a supply agreement with Chinese engineering and manufacturing firm CASEN Investment Co. (formerly DK Solar) to provide their heliostats (solar mirrors) and associated control systems for its first operational demonstration plant, under construction in Ouarzazate, Morocco. The Plant is being deployed in collaboration with Masen, the Moroccan Agency for Sustainable Energy, at Masen’s Noor-Ouarzazate Complex, the world’s largest concentrated solar power (CSP) facility.

CASEN’s innovative mirrors include several unique design features. Most heliostats are stowed at night with their mirrors facing the sky. This can cause the mirrors to be soiled by a sticky mix of moisture (dew), dust, and air pollution. They also are subject to adverse weather, including sandstorms and hail. In much of the Middle East, for example, great expense usually is required to clean the hard-to-remove dirt from the mirrors that’s been deposited at night.

In contrast, CASEN’s heliostats are stowed at night with their mirrors facing down, avoiding these serious and expensive problems.

CASEN’s heliostat’s additional unique design features significantly reduce installation costs and improve siting flexibility.

Features include:
1. They are mounted on piles driven into the ground, which avoids the cost of concrete foundations and also makes them suitable for deployment on uneven ground.
2. The tracking of each heliostat is controlled wirelessly.
3. Finally, each heliostat is rotated using its own integrated solar cell and battery.
Among other things, these features avoid the damage to the site that comes with pouring concrete foundations and, also, digging trenches for wiring.

“CASEN’s unique technology will be a significant contributor to the low CAPEX and O&M costs and to the rapid deployment that are hallmarks of our modular, scalable 247Solar Plants,” says Bruce N. Anderson, CEO. “We look forward to showcasing their capabilities as part of our demonstration plant in Morocco, which we expect to be operational later this year.”

CASEN’s President, Mr. Zhu Zhili, adds, “247Solar Plants are the next big leap in clean energy, and so they are an ideal application for our next-generation heliostats. We greatly look forward to a mutually beneficial and long-term relationship as they deploy 247Solar Plants around the world.”

For more information, please contact:

Bruce N. Anderson, CEO