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Concentration of CO2 in the Atmosphere

Battery Storage Choices Grow with Fortress Power

Fortress Power eVault 18.5 installation. Courtesy photos.

Chris Sparadeo

In the past, flooded lead-acid (FLA) batteries have been the first choice for those living off-grid. Although they have historically been the backbone of remote electrification, these batteries come with tradeoffs. Off-gassing, equalization charge, hydrometer readings are concepts that off-grid homeowners have come to grudgingly […]

Liquid Air Energy Storage in Vermont

Cryogenic energy storage system. Image: Highview Power.

George Harvey

Two energy companies announced that they will co-develop a highly unusual energy-storage project in Vermont. It will be the first commercial cryogenic energy-storage system in the United States. It will use air that has been cooled to the point of being […]

Lithium vs. Lead-Acid Batteries

Comparing Total Cost of Ownership

Craig Quentin, Applications Engineer, RELiON Battery

Compared to lead-acid batteries, lithium iron phosphate (LiFePO4) batteries offer users practical advantages such as lighter weight and hands-off operation. These batteries also have longer lifetimes which makes for far less frequent battery replacements and service calls.

But many first-time buyers of LiFePO4 batteries […]

A Game-Changer for Off-Grid Battery Storage

The lead-acid battery bank consisted of 24-2V batteries. All photos: N.R. Mallery

N.R. Mallery

As Bob Dylan wrote, “The times they are a changin’…”. The change is now. Battery storage, on or off the grid today has produced a real game-changer. And my off-the-grid experience proves it.

In the beginning, I […]

Huge Batteries Store Energy for Holyoke Gas and Electric

The new battery system that stores energy made from the solar at Holyoke Gas and Electric.

Green Energy Times staff

The old Mount Tom coal-burning plant. Wikimedia Commons.

The article, “From Dirty Coal to Solar Power,” (bit.ly/coal-to-solar) which appeared in the December 2016 issue of Green Energy Times, described what was […]

GMP-installed Tesla Batteries and Home Solar Arrays Save Money for Everyone

George Harvey

Green Mountain Power (GMP), which provides electric utility services for roughly three-quarters of the people of Vermont, has reported significant savings from the growth of net-metered solar power and installations of Tesla Powerwall batteries, which it subsidized. In fact, during a heatwave in August it saved $600,000 because of the combination […]

Simpliphi Lithium Batteries: Storing Solar Power in Our Neck of the Woods

Fabrizio’s home at Windy Ridge Orchards nearNorth Haverhill, New Hampshire.

New system at Fabrizio’s home.

By John Hassell

Simpliphi lithium ferrous phosphate (LFP) batteries are making their way into residential and small business renewable energy applications in the North Country. Let’s take a look at a few residential systems […]

FREE Tesla Powerwalls for 100 GMP Low-income Families with Health Concerns

Green Mountain Power is offering Tesla Powerwall 2.0 batteries to 100 eligible customers, free of charge. A $150,000 grant from the Vermont Low Income Trust for Electricity (VLITE) will pay for the cutting-edge technology and installation in the homes of low income customers with significant need for backup power reliability due to health and […]

New Program Offers Free, Innovative Powerwall Batteries For 100 Low Income Vermonters with Health Concerns

$150,000 VLITE Grant Will Ensure Power Reliability for Qualifying Low Income GMP Customers

COLCHESTER, Vt. – Green Mountain Power is offering Tesla Powerwall 2.0 batteries to 100 eligible customers, free of charge. A $150,000 grant from the Vermont Low Income Trust for Electricity (VLITE) will pay for the cutting-edge technology and installation in […]

Sonnen Batteries

This recent sonnen battery installation in New Hampshire is an ECO-12. It provides continuous 8,000 watt output along with 12kWh of standby capacity. It can be charged by the home’s 7.8 kilowatt AC solar array, the grid, or a back-up generator. Photo courtesy of Granite State Solar.

By George Harvey

In a […]