NEW YORK (TheStreet) -- Shares of Sunrun(RUN) - Get Report were rising 5.64% to $6.47 on heavy trading volume mid-Friday afternoon as Goldman Sachs raised its rating on the stock to "buy" from "neutral."

The firm has a $10 price target on shares of the San Francisco-based solar energy system provider, the Fly reports.

Sunrun has above-market growth potential, the firm noted.

Goldman added that "solar stocks appear to be reflecting the challenging cyclical environment that has emerged in recent quarters."

The firm also upgraded Vivint Solar (VSLR) to "neutral" from "sell" in the note released earlier today, downgrading bothFirst Solar(FSLR) and Solar Edge to "sell" from "neutral."

More than 2.44 million shares of Sunrun have traded hands so far on Friday vs. the 30-day average volume of about 993,000 shares.

Separately, TheStreet Ratings objectively rated Sunrun stock according to its "risk-adjusted" total return prospect over a 12-month investment horizon. Not based on the news in any given day, the rating may differ from Jim Cramer's view or that of this articles's author.

TheStreet Ratings rated this stock as a "sell" with a ratings score of D-.

Among the areas we feel are negative, one of the most important has been very high debt management risk by most measures.

You can view the full analysis from the report here: RUN

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