The grades of 3 Electric Utilities stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

This week, Brookfield Infrastructure Partners L.P. (BIP) pushes up from a B to a A rating. Brookfield Infrastructure Partners L.P. engages in the utilities, transportation and energy, and timber businesses. The company also gets A’s in operating margin growth, earnings growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of BIP stock.

The rating of Pampa Energia SA Sponsored ADR (PAM) moves up this week, rising from a B to a A. Pampa Energia SA Sponsored ADR is a fully integrated electricity company in Argentina. The company also gets A’s in sales growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of PAM stock.

Edenor SA Sponsored ADR Class B’s (EDN) ratings are looking better this week, moving up to a B from last week’s C. Edenor SA Sponsored ADR Class B distributes and sells electricity in the north-eastern region of greater Buenos Aires. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of EDN stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.