The 40th Anniversary of 1969's Woodstock Festival is this year. As celebration, Woodstock founder Michael Lang is trying to plan a free, green festival. Lang was reported at a SXSW panel saying, "We want to have as small a carbon footprint as we can and use as many green techniqes as we can." The ideas are all speculative at this point, as reported by Billboard (page 6). Ideally, the festival will take place outside of New York City and run concurrently with another in Berlin, Germany.
The main production barrier as of now is funding (surprise, surprise). To be a free show, Lang needs major sponsors. Though environmentally responsible and progressive, green festivals are extremely expensive. If all goes well, the fesitval will be held in August. Keep your fingers crossed.