Don’t be a solar PV efficiency snob

Physics professor Tom Murphy fights solar PV snobbery with his explanation of why 15 percent efficiency rates for solar panels is actually quite remarkable and not the real barrier to clean power.

4 reasons why cloud computing is efficient

There have been a few recent analyses showing that cloud computing has significant efficiency and cost advantages. I can think of four reasons why cloud computing is (with few exceptions) significantly more energy efficient than using in-house data centers: