Aquion Energy Battery Storage

Solar Technology

Solar + Batteries: The Bleeding Edge

Part 3 of our Series on Solar + Batteries Previously: we discussed the context of Tesla’s “PowerWall” announcement and what, exactly, that battery system is and why people are so excited about it.  We also talked applications, now and in the future, of solar PV + battery storage. In part 3 of our series we talk… Read more

August 17, 2015

Air Source Heat Pump Planson International

Energy Efficiency

Efficiency Maine rebates for heat pumps for business are back

Efficiency Maine has announced that its popular program for heat pumps for business are back! A $500 rebate is available for single units and $250 is available for additional units.  Here are the full details from the Efficiency Maine memo: Effective August 1, 2015, the ductless mini-split heat pump measure will be available once again…. Read more

August 12, 2015

Rockland Maine - Community Solar Farm Site Map

In the News

1,100-panel solar farm eyed for Rockland

The potential for a solar farm with more than 1,100 panels is being eyed for Rockland. The system, designed by ReVision Energy of Liberty, could produce more than 400,000 kilowatt hours of electricity annually for up to nine shareholders, according to Sue Jones, the company’s community solar farm director. Jones said it would be the… Read more

August 4, 2015


Solar Technology

How Mini Split Heat Pumps Work

Air source heat pumps are a highly efficient form of electric heating, that work on the same concept as your home’s refrigerator or a window air conditioner running in reverse. Rather than heating air molecules with electricity, they extract heat that already exists in outside air and move it into your home. This is possible even at temperatures well below zero. In heating mode, refrigerant is pumped through the outdoor unit, where it absorbs heat. The hot refrigerant is then pumped through the indoor air handler, where it releases the heat into the home. In summer, the unit works in reverse, extracting heat from the home and moving it outside, providing ultra-efficient cooling. Since the heat pump moves heat, rather than creating it, it is much more efficient than traditional electric heating systems, and in fact has an overall efficiency of 250%. Read more

July 21, 2015