The overall ratings of three Independent Utilities stocks are down on Portfolio Grader this week. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, Brookfield Renewable Energy Partners L.P. (NYSE:BEP) falls to a D (“sell”), worse than last week’s grade of C (“hold”). For a full analysis of BEP stock, visit Portfolio Grader.

Empresa Nacional de Electricidad (NYSE:EOC) experiences a ratings drop this week, going from last week’s C to a D. Empresa Nacional de Electricidad engages in the generation, transmission, production, and distribution of electricity. The stock price has dropped 11.6% over the past month, worse than the 1.7% decrease the S&P 500 has seen over the same period of time. To get an in-depth look at EOC, get Portfolio Grader’s complete analysis of EOC stock.

Atlantic Power’s (NYSE:AT) rating falls this week to an F (“strong sell”), down from last week’s D (“sell”). Atlantic Power operates as a power generation and infrastructure company with a portfolio of assets in the United States and Canada. The stock gets F’s in Earnings Revisions, Equity, and Cash Flow. The stock price has fallen 15.3% over the past month. For more information, get Portfolio Grader’s complete analysis of AT 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.