From last night, but...
The article says using all of the available energy from the sun, which would classify us as a type 1 civilization. Currently, we sit at type zero, obtaining our energy from dead plants. There is a great book by theoretical physicist Michio Kaku called
Physics of the Future which explores all the likely advances our civilization will make in the next 100 years. (If you're weary of some of the predictions, check out the references; he's made sure to consult every expert and leading scientist at the forefront of these fields.)
In one chapter, he discuses the energy classification of civilizations, along with our transition from a type 0 to a type 1 being well within the realm of possibility by 2100. Either way, the book is a great read and I highly recommend it.