I just tried placing an order, there is no bitcoin option at the checkout. Google wallet, PayPal, or credit cards.
But:

Maybe just not ready yet?
Obviously not, and it's a big turn-off. Why put the logo and release the article when people cannot pay with bitcoins? Someone in the company simply boosting up this rally for personal gains?
Many merchants are claimed to accept bitcoin, but in reality they don't. I placed an order with babbletees, chose bitcoin option, checked out, and never heard back from them about how to make the payment. Sent three emails, nothing.
I hope gogreensolar proves to be different, and follows through ASAP, because this does not look good.