Solar technology and energy services provider SunPower (NASDAQ:SPWR) saw its shares rise dramatically higher on Wednesday. Earlier, the company announced that it will add the Tesla (NASDAQ:TSLA) Powerwall 3, a battery storage system, to its portfolio. While SPWR stock soared on the positive consumer implications, it remains a highly speculative investment.According to a corporate press release, SunPower will offer the latest Powerwall system “as part of its curated portfolio of high quality and affordable s ...