How to Protect Solar Transformers from Unexpected Oil Spills

The United States solar industry is booming. According to the Solar Energy Industry Association, it boasts an annual average growth rate of 59 percent over the last decade. Utility scale projects accounted for 59 percent of new solar installations in 2017, and should continue at that rate or higher through 2021. Like wind, water and […]

Meeting SPCC Regulations: What Size Transformer Oil Containment System Do I Need?

Secondary oil containment around transformers is critical for capturing oil spills and protecting the environment. SPCC regulations provide guidance for containing oil-filled equipment. The rule specifies sizing oil containment systems to contain the contents of the largest vessel – or in this case, the transformer inside the containment area. Add 10 percent to the volume […]

Hydrostatic Pressure Test Proves This New Secondary Containment Solution Won’t Leak

An electric utility installed a 60 mil HDPE liner and sump pump for secondary containment at a transformer pit. A few months later, a site inspector checked the pit’s sump can. Surprisingly, it contained no water. With an impervious liner system, water should only be released via a drainage mechanism. The empty sump can indicate […]