More than a dozen U.S. companies, including Alcoa Inc., will pledge to invest more than $140 billion in efforts to cut carbon emissions. PHOTO: DANIEL ACKER/BLOOMBERG NEWS (WALL STREET JOURNAL)

According to the WSJ, the list of companies pledging money and resources to fighting climate change contains many of the country’s most prominent corporations, including retailers, banks and tech companies. Financial institutions like Goldman Sachs and Bank of America have committed to financing billions of dollars in renewable energy plans. Tech companies like Google and Microsoft committed to purchasing 100% of the energy for their power-hungry data centers from renewable energy sources, in addition to a variety of other promises. Companies like Wal-Mart and PepsiCo have agreed to rethink elements of their supply chain in an environmentally conscious manner.

Carbon Recall is one of best renewable energy services businesses in existence today. Companies and homeowners in America are frustrated with the unpredictability of their utility bills and with their buildings and properties inefficient use of energy, and they’re willing to invest to make their properties more efficient and consequently more valuable.

A sun score represents the solar suitability of a building’s rooftop on a scale from one to 100. Sun Number, LLC has developed an algorithm that produces an accurate analysis of the solar energy potential of buildings via this website.

Realtors across the country are using this tool to determine the marketability of their listings based on the solar energy potential for a property. Clearly the focus and awareness of the benefits of renewable energy alternatives is increasing dramatically in the U.S.

A net-zero energy house produces at least as much energy as it consumes over the course of a year. A number of states are taking steps toward encouraging or even requiring construction of net-zero energy homes in the future. For example, California will require that, as of 2020, all newly constructed homes must be net-zero energy ready.