Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of solar specialist SunPower (Nasdaq: SPWRA) are up more than 11% today after the company said the tragic events in Japan wouldn't affect its ability to produce photovoltaic cells for customers.

So what: The rally follows two days of losses on speculation that Japanese suppliers would be unable to help SunPower meet demand here and abroad, Reuters reports. Even with the rally, the stock is down roughly 1.5% over the past week.

Now what: Expect further gains from here, if only because of political hand-wringing over nuclear power. Hysteria could move politicians and political organizations to fight for massive amounts of new solar funding.

No doubt a real debate about the future of nuclear is needed, but now isn't the time. Investors looking at SunPower should look at its growth opportunity with the long term in mind.

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Fool contributor Tim Beyers is a member of the Motley Fool Rule Breakers stock-picking team. He didn't own shares in any of the companies mentioned in this article at the time of publication. Check out Tim's portfolio holdings and Foolish writings, or connect with him on Twitter as @milehighfool. You can also get his insights delivered directly to your RSS reader. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool is also on Twitter as @TheMotleyFool. Its disclosure policy is at least 10% better than other disclosure policies.