Sunrun Inc (NASDAQ: RUN) is up more than 15% on Wednesday after rival SunPower Corporation (NASDAQ: SPWR) filed for bankruptcy following months of struggles related to higher interest rates. SPWR recently faced allegations of financial misconduct which contributed to GLJ Research calling SunPower stock “worthless” in July. But the bane of SunPower could be a boon for Sunrun which is already in talks to bring some of its former dealers on as partners. On the earnings call this morning, Sunrun chief executive Mary Powell dubbed SPWR bankruptcy an opportunity for Sunrun to “gain share in a financ…