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


Legislation & Policy

Solar Legislative Update, Summer 2015

A tumultuous session, but let’s call it a draw Maine Some bad solar bills were defeated, as were a number of good ones that had broad bipartisan support, but not enough to overcome the Govenor’s veto.  The most ambitious of the solar bills, LD1263, was transformed into a “Resolve” supported by both solar installers, the… Read more

July 20, 2015

solarize derry nh

In the News

Derry chosen to pilot new solar program

Derry has been chosen as a pilot community for the Solar Up NH program, an initiative that could cut a homeowner’s electricity costs and also help the town be a green, clean community. Residents would also have different options for buying into the project including a financing plan for payments. There are rebates, tax credits… Read more

July 15, 2015

Solar Electric + Battery Backup

Solar Technology

Solar + Batteries: The Right Thing to Power my Home?

Part 2 of our Series on Solar + Batteries Last month we discussed the context of Tesla’s “PowerWall” announcement and what, exactly, that battery system is and why people are so excited about it. This month, we talk applications – the various scenarios under which solar + batteries make sense (either now or in the future). Full… Read more

July 8, 2015

ReVision NHBSR Cornerstone Finalist Award

In the News

ReVision Opens Concord, NH Office to Keep Up with Growth in Granite State

ReVision Energy is proud to announce that we’ve opened our fourth office, located in Concord, New Hampshire. The office is at 14 Dixon Avenue, in close proximity to several clean tech organizations as well as the State House and downtown businesses.

ReVision’s presence in New Hampshire has increased dramatically in recent years – from one employee in Exeter in 2010 to thirty-five today—and the Concord office will enable us to help more people reduce fossil fuel consumption and carbon pollution.

The new office will provide work space for a sales team, operations staff and a government relations division headed by Jack Ruderman, formerly Director of the Sustainable Energy Division of the New Hampshire Public Utilities Commission. Read more

June 24, 2015