MarketWatch  21 min ago  Comment 
David Trainer and Sam McBride evaluate the largest solar companies in the U.S. on five factors.
Motley Fool  Aug 16  Comment 
New production has already begun for SunPower's next-generation solar panel -- and it's being made in the U.S.A.
Motley Fool  Aug 9  Comment 
Earnings reports for First Solar and SunPower shot the stocks in completely opposite directions last week. Here's why.
Motley Fool  Aug 5  Comment 
Just because a company isn't a household name doesn't mean it can't be a dividend payer worth owning for years to come.
Motley Fool  Aug 3  Comment 
Another quarter that beat guidance wasn't enough to satisfy investors today.
Benzinga  Aug 2  Comment 
SunPower Corporation (NASDAQ: SPWR) shares are trading lower by $2.12 at $9.27. Despite a Q2 EPS beat of 9 cents with a nearly $30 million sales beat, the stock is deep in the red as the company forecasts weaker-than-expected Q3...
Benzinga  Aug 2  Comment 
SunPower Corporation (NASDAQ: SPWR) shares plunged more than 18 percent Wednesday after the company reported a second-quarter earnings beat but lowered its guidance for the remainder of 2017. While investors are certainly disappointed by the big...
Motley Fool  Aug 2  Comment 
Earnings were much better than expected, but guidance was weak -- though the fundamentals hadn't changed.


I bought the 30 watt solar seystm from harbor freight, it cost $129 on sale, I have it hooked up in my shed to a 115 amp hour battery. My panels have about 6 hours of direct sunlight, which adds up to 240 watts of charging into the battery. This means that I can put another 115 amp hour battery into the seystm. I want to use it to run the lights in the shed as well as an emergency supply of electricity to run cell phone chargers and a small digital tv seystm to watch the news and weather.

Above comment does not pertain to Sunpower.

Watts and amp-hours are not the same thing.

HFT's 30W solar panel system probably does not produce 30W.

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