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21st Century Tech Blog
Science, Technology and the Future
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Solar Energy
Energy/Industry
Perovskite Photovoltaics Leaving Silicon In The Dust
lenrosen4
-
May 30, 2025
Energy/Industry
Perovskite Solar: The Technology That’s Changing How We Power Small Devices
lenrosen4
-
May 28, 2025
Renewable
Solar Energy Technology Is Going “Perovskite”
lenrosen4
-
January 18, 2025
Solar Energy
A New Look At The Viability Of Solar Roads
lenrosen4
-
November 4, 2024
Energy/Industry
Solar Energy is Popping Up in Some Very Unusual Places
lenrosen4
-
April 17, 2024
Energy/Industry
When Can 25-Watts of Base Power Be a Difference Maker? When Lighting Up and Connecting Remote Sites Around the World
lenrosen4
-
September 27, 2018
1
Electric Vehicles
A Hiatus from Blogging – A Week in Aruba Where the Wind Always Blows and the Sun Never Quits
lenrosen4
-
May 7, 2018
0
Energy/Industry
Thinking About Installing a Solar Rooftop – This Infographic Should Be Helpful
lenrosen4
-
April 26, 2018
0
Energy/Industry
Solar Panel War Heating Up
lenrosen4
-
April 20, 2018
0
Electric Vehicles
China Doubling Down on Greening its Economy
lenrosen4
-
March 10, 2018
0
Energy/Industry
Gizmos & Gadgets: China Builds World’s Largest Air Filter
lenrosen4
-
February 20, 2018
0
Energy/Industry
All Forms of Renewable Energy to be Cheaper Than Power Generated from Fossil Fuel Sources by 2020
lenrosen4
-
January 17, 2018
0
Energy/Industry
South Australia is Building the World’s Biggest Solar Thermal Power Plant
lenrosen4
-
January 11, 2018
0
Energy/Industry
Emerging Smart Off Grid Technology Fits What’s Needed for the 21st Century
lenrosen4
-
December 22, 2017
0
Climate Change Science
G20 Countries Efforts to Decarbonize So Far Lacking
lenrosen4
-
October 30, 2017
0
Agriculture
Is the World Getting Better?
lenrosen4
-
October 12, 2017
0
Energy/Industry
Gizmos & Gadgets: A Water-Cooling Solar Panel That Could Reduce HVAC Costs by 21%
lenrosen4
-
September 5, 2017
0
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