Although I am a strong supporter of solar energy, I had not been following developments in that area so I was pleasantly surprised at this news report that a new solar cell had broken a new efficiency record with 44.7%. What this means is that 44.7% of the light from the sun, from ultraviolet through to the infrared part of the spectrum, is converted into electrical energy.
The new record is not that much greater than the old record of 44.4% but the surprise for me was that I had been under the impression that it was around 20%, so I was clearly out of touch.
Getting close to 50% for sunlight to electricity conversion is incredibly good. But the cost of solar energy is still higher than that for coal and oil. But if the cost of the cells can be brought down, then combined with the heightened efficiency, solar energy may finally become economically viable and commercially attractive.