This week, the ratings of 3 Electrical Equipment stocks on Portfolio Grader are down. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This is a rough week for ABB Ltd. Sponsored ADR (ABB). The company’s rating falls to D from the previous week’s C. ABB Ltd. Sponsored ADR provides power and automation technologies that are designed to improve performance and lower the environmental impact for customers in the utility and industrial sectors. For more information, get Portfolio Grader’s complete analysis of ABB stock.

FuelCell Energy, Inc. (FCEL) experiences a ratings drop this week, going from last week’s C to a D. FuelCell Energy, Inc. develops and commercializes fuel cell power plants for electric power generation. The company also gets F’s in earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of FCEL stock.

Plug Power Inc. (PLUG) slips from a C to a D this week. Plug Power Inc. designs, develops, manufactures and commercializes fuel cell systems for forklifts and materials handling equipment. The company also gets F’s in earnings revisions, earnings surprise, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of PLUG 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.