Standard & Poors analysts raise opinions from hold to buy on Casella Waste Systems and Evergreen Solar:

1. Casella (CWST) by analyst Stewart Scharf

a. Revenues rose 5.6% internally in latest quarter, driven by price hikes, and S&P projects 7% revenue growth for full fiscal year 2009 (April).

b. Expectations of modest volume growth on the weak economy and housing market in the Northeast, but expect EBITDA margin expansion as CWST focuses on cost cuts and divestitures of non-core assets.

c. Target price 4 to 16.

2. Evergreen Solar (ESLR) by analyst Michael Jaffe

a. ESLR sets two long-term sales contracts, totaling $600 million, with U.S.-based groSolar and Germany-based Wagner & Co Solartechnik.

b. This follows $1 billion of May contracts.

c. Strong ELSR cash flow starting in 2010.

d. Target price of $18

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