Mark Sandeen
@marksandeen.bsky.social
Town of Lexington Select Board Member
Former Chair, Sustainable Lexington
Former Chair, Sustainable Lexington
Our rivers have amazing potential.
The Merrimack River flowing through Lowell and Lawrence MA with a flow rate of 7,557 cubic feet per second has a thermal potential of 1 GW by lowering the water temperature 2°F or 1.1°C.
The Pilgrim nuclear power plant in MA used to produce 680 MW.
The Merrimack River flowing through Lowell and Lawrence MA with a flow rate of 7,557 cubic feet per second has a thermal potential of 1 GW by lowering the water temperature 2°F or 1.1°C.
The Pilgrim nuclear power plant in MA used to produce 680 MW.
September 9, 2025 at 9:17 AM
Our rivers have amazing potential.
The Merrimack River flowing through Lowell and Lawrence MA with a flow rate of 7,557 cubic feet per second has a thermal potential of 1 GW by lowering the water temperature 2°F or 1.1°C.
The Pilgrim nuclear power plant in MA used to produce 680 MW.
The Merrimack River flowing through Lowell and Lawrence MA with a flow rate of 7,557 cubic feet per second has a thermal potential of 1 GW by lowering the water temperature 2°F or 1.1°C.
The Pilgrim nuclear power plant in MA used to produce 680 MW.
And it's not even close.
August 29, 2025 at 9:37 AM
And it's not even close.
Behind the meter solar lowered and shifted ISO-NE peak demand on June 23rd from 25,972 MW at 2:30 PM to 24,369 MW at 6:30 PM, resulting in a 6.6% (1,600 MW) reduction in peak demand.
Solar delivered an amazing 24% of the grid's electricity at what would have been the peak demand without solar.
Solar delivered an amazing 24% of the grid's electricity at what would have been the peak demand without solar.
June 26, 2025 at 9:39 AM
Behind the meter solar lowered and shifted ISO-NE peak demand on June 23rd from 25,972 MW at 2:30 PM to 24,369 MW at 6:30 PM, resulting in a 6.6% (1,600 MW) reduction in peak demand.
Solar delivered an amazing 24% of the grid's electricity at what would have been the peak demand without solar.
Solar delivered an amazing 24% of the grid's electricity at what would have been the peak demand without solar.
A big part of why this transition has been so successful is based on the spark gap between the cost of heating oil and electricity in these countries.
June 5, 2025 at 9:53 AM
A big part of why this transition has been so successful is based on the spark gap between the cost of heating oil and electricity in these countries.
After the raccoon attack
November 23, 2024 at 12:51 PM
After the raccoon attack
One of my favorite - "How does a heat pump work?" explanations comes from Nicole Kelner
August 28, 2024 at 9:44 AM
One of my favorite - "How does a heat pump work?" explanations comes from Nicole Kelner
According to the person who posted this pic, "This car looks like it has seen the face of God and it did not like what it has seen."
Supposedly the "Russian Tesla killer"
Supposedly the "Russian Tesla killer"
February 20, 2024 at 11:30 AM
According to the person who posted this pic, "This car looks like it has seen the face of God and it did not like what it has seen."
Supposedly the "Russian Tesla killer"
Supposedly the "Russian Tesla killer"