Uncategorized

Once Upon a Grime: A Solar Fairy Tale

PV and ME Question #4: “What’s so funny about solar?” Chapter 1: The Song of Solar and Coal Once upon a time, there was a mean, old utility-power mogul named Grimy Electric. A former general in the war against renewables, he was also known by his lieutenants as General Electric — ‘GE’ for short. ‘GE’ craved coal-fired power plants and detested sola

Read More
Uncategorized

Japan Solar Boom Spurred by Low-Interest Loans from Local Banks, Credit Unions, Utilities

The U.S. residential solar photovoltaic (PV) market is on the rise. According to SEIA/GTM Research, in 2014 the residential market surpassed the non-residential market for the first time. “The past three years have now seen the residential market grow by at least 50 percent on an annual basis, buoyed by major strides to lower soft costs, in tandem with increased penetration of third party financing solutions,” commented Cory Honeyman, Solar Analyst at GTM Research.

Read More
NewsUncategorized

Bonded PV Arrays Could Provide Safer Solar Power

Most electricians are referred to as “indoor wiremen” and are experts at installing electrical equipment indoors, but some lack experience working with exposed cables and outdoor equipment bonding. Traditional methods of bonding and grounding include the extensive use of bare copper conductors for equipment bonding. While copper is preferred for bonding steel, it is not the best choice around exposed aluminum members. Aluminum and copper should not come into direct contact due to galvanic corrosion issues. Over time, copper has a tendency to erode aluminum and can even cause structural failure of thin aluminum extrusions when in direct contact.

Read More