I do see what appears to be a potential bull flag continuation pattern on FCEL right now but it shows best on the 60 or 30-minute time frame. The stock has also pulled back to the former first target/key support level of 1.60 today which has (so far) contained the recent pullback. Until/unless 1.60 is taken out with conviction, I view this pullback to support as healthy price action since it has been on low-volume (so far) and the stock was quite over-bought on the short-term time frames.
From here, I’d like to see FCEL hold 1.60 & begin to move higher soon, ideally on an increase in volume & then go on to take out the recent reaction high of 1.80.

Yes, I do see that positive divergence on the weekly MACD as well as the RSI. Just keep in mind that as a low-priced stock that has fallen from a high of 56.88 in 2014 to nearly 1.00, there are obviously are (or were?) some fundamental issues with the company so the risk of a total or near-total loss, should FCEL ultimately go on to file for bankruptcy protection as quite a few stocks that fall down to & below the $1.00 level do, is certainly a possibility. As such, stops are a must as they should be with any trade.
With that being said, should the charts continue to firm up, I could see the possibility of FCEL moving up to the 4.00-4.80 level in the coming months to years so there is certainly a lot of upside potential along with the downside potential. As always, risk & return go hand in hand. Best of luck on the trade.