How to Use the EGSA Buying Guide to Find Power Generation Products or Companies

Updated

The EGSA Buying Guide at egsa.org supports two search paths: Search by Product and Search by Company. Use the product path when you know the equipment category you need (for example, generators, switchgear, load banks, or UPS systems) and want to see which companies list offerings there. Use the company path when you already have a supplier name and want to confirm what it offers. Both paths are accessible from the Buying Guide section of the site.

Search by Product: Start With the Category

The product directory is organized into equipment categories rather than a single keyword box. From the Buying Guide, choose Search by Product and select the category closest to your requirement. The categories listed on the site include:

  • Batteries | Battery Chargers
  • Control | Annunciator Systems
  • Emission Control Equipment
  • Enclosures
  • Engine Starters | Starting Aids
  • Engines | Diesel or Gas
  • Engines | Gas Turbine
  • Filters | Lube Oil | Fuel or Air
  • Fuel Cells
  • Fuel Tanks | Fuel Storage Systems
  • Generator Laminations
  • Generator Sets
  • Generators | Alternators
  • Governors
  • Heat Recovery Systems
  • Instruments and Controls | Meters | Gauges | Relays | Contactors | Switches
  • Load Banks
  • Motor Generator Sets
  • Radiator | Heat Exchangers
  • Relays | Protective or Synchronizing
  • Silencers | Exhaust Systems | Noise Abatement
  • Solenoids
  • Switchgear and Transfer Switches | Bypass Isolation Switches | Switchgear Panels
  • Trailers | Generator Set
  • Transformers
  • Uninterruptible Power Supplies
  • Vibration Isolators
  • Voltage Regulators
  • Wiring Devices or Receptacles

How to use it: pick the narrowest category that matches your need. If you need a complete packaged system, start with Generator Sets; if you are sourcing a component for an existing installation, go directly to the component category (for example, Voltage Regulators or Vibration Isolators). Selecting a broad category first and then narrowing is faster than scanning the full list when your requirement is specific.

Expected result: a listing of companies associated with that product category, which you can then review individually.

Search by Company

If you already know the manufacturer or supplier name, choose Search by Company instead. This is the faster path when you are verifying a vendor's presence in the directory or checking whether a company appears under a particular equipment type. It is also useful when a colleague has recommended a supplier and you want to see how that company is categorized.

Choosing Between the Two Paths

Your situation Use this path
You know the equipment type but not the suppliers Search by Product
You have a supplier name and want to confirm its listing Search by Company
You are comparing options across a component category Search by Product, then review each company
You are building a shortlist for a project specification Search by Product, starting from the system-level category

Practical Tips and Common Sticking Points

  • Category names are specific. The directory separates Diesel or Gas engines from Gas Turbine engines, and separates Generator Sets from Generators | Alternators. Check both the system-level and component-level categories if your first search returns little.
  • Adjacent categories matter. A transfer switch requirement may sit under Switchgear and Transfer Switches, while protective or synchronizing relays sit under a separate Relays category. If a search seems thin, look at the neighboring category.
  • The Buying Guide is a directory, not a quote tool. The site describes it as a place to search by product or company; it does not indicate pricing or transaction features. Treat listings as a starting point for direct contact with suppliers.
  • Related resources on the same site. If you need background before shortlisting, the site also lists an OnSite Power Generation Book and a Powerline publication under Publications, and education and certification pages under Education. These are separate from the Buying Guide and are useful when you need to understand a product category before evaluating suppliers.

What You Can Expect to Accomplish

After one pass through the Buying Guide, you should be able to name the specific product category your project needs and identify the companies listed under it, or confirm a known supplier's category. That output—a category plus a shortlist of companies—is what the directory is designed to produce; pricing, availability, and technical fit still need to be confirmed directly with each supplier.