It's nice to see a heavy volume gap higher to break a downtrend. It can be a very strong signal that sentiment has changed on a particular stock or industry group. While renewable energy stocks ($DWCREE) remain technically-challenged, one of its components - Sunrun (RUN) - has certainly begun to show improving technical signs that could be considered by aggressive traders. Take a look at the chart:
The bottom of gap support close to 5.40 has been filled and RUN is beginning to turn higher again. Ultimately, a breakout above 6.50 on a closing basis would indicate a much healthier stock with rising highs and lows.