Three electrical equipment stocks are moving up in their overall rating this week, according to the Portfolio Grader database. Every one of these is graded an “A” (“strong buy”) or “B” overall (“buy”).

PowerSecure International, Inc. (POWR) is making headway this week, with the company’s rating improving to an A (“strong buy”) from a B (“buy”) last week. PowerSecure International provides energy management and conservation solutions to utilities and their commercial, institutional and industrial customers. In Portfolio Grader’s specific subcategories of Earnings Growth, Margin Growth and Sales Growth, POWR also gets A’s. For more information, get Portfolio Grader’s complete analysis of POWR stock.

The rating of Highpower International, Inc. (HPJ) moves up this week, rising from a B to an A. Highpower International develops and manufactures nickel metal hydride and lithium-ion rechargeable batteries and related products. For more information, get Portfolio Grader’s complete analysis of HPJ stock.

Capstone Turbine Corporation (CPST) is bettering its rating of C (“hold”) from last week to a B (“buy”) this week. Capstone Turbine is a developer, manufacturer, marketer, and service provider of microturbine technology solutions that are used in stationary distributed power generation applications. For more information, get Portfolio Grader’s complete analysis of CPST 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.