I had written this up regarding Coos county renewable power awhile back that may be of interest to those who think it not possible having a renewable grid
Some Coos County facts that may mess with some folks thinking about renewable power generation. Coos county is major net producer of a mix of intermittent and dispatchable renewable power and could be a much larger producer. There is close to 60 MW of mostly run of the river hydroelectric. There is minimal storage in the Androscoggin River and operating limits in the Union Water Power (they control the upstream storage lakes) means that they pretty well adjust output to the river flow. Its variable with the season but mostly baseload (24/7) unlike the big hydros in Maine that have large man made lakes to allow diurnal dispatch. Brookfield that owns more than half of the power output is in the process of installing Tesla LFP (Lithium Iron Phosphate)Megapack battery storage in Berlin (they also have installed similar in East Millinocket) to allow more peak dispatchable power. (Even Tesla has switched from the Lithium Manganese Nickel Cobalt chemistry that is problematical from a materials supply basis) on their bulk storage battery packs and some (by not all of their cars) to Lithium Phosphate chemistry that do not require cobalt (also not prone to self ignition).
The Burgess Biopower plant in Berlin is 75 MW, it is baseload with a lot of turn down and they typically have 30 to 60 days of fuel in the yard which consists of mix of sawmill waste from the large sawmill operation in Milan and a smaller one in Berlin along with low grade waste wood from timber harvesting. It is regarded as renewable power although there are groups that feel that it is not renewable enough as its dependent on the carbon cycle to reclaim its CO2 emissions. As long as there is market for lumber there will be sawmill waste and forestry operations so if it is not turned into power its got to go somewhere although if the nascent biochar industry is successful, that may change (its definitely not assured at this point).
There is also the somewhat out of sight out of mind 100 MW (nameplate) windfarm in Millsfield, along with the 14 MW (nameplate) Jericho wind farm. They are intermittent resources but the output tends to track the weather. There is another wind power project that was slated for ridgelines north of the Balsams that was at one point rated for 160 MW with the potential for an additional 100 MW that is on hold until transmission issues are resolved.
There are also 2 other biomass plants, Whitefield and Bethlehem that are currently idled totaling around 33 MW. Both were dispatchable and had on site fuel storage for 30 days. The party in control of the state would rather let Bow burn coal for cheap than run biomass plants with the exception of Berlin and they have their sights set on Berlin.
Add it all up and Coos county could be a major net renewable energy producer with one big problem, it is limited in how much power it can export to the rest of the state or the region as the powerline operated under the special permit across the WMNF is not large enough and upgrading it would require a very difficult permitting process. Currently there are times when plants cannot put out all the power they can generate due to this limit. There also would also need to be major investment in the so called Coos Loop electrical transmission system to increase it capacity but Eversource has been upgrading it under the guise of reliability since the Northern Pass project got shelved. They know the numbers but will not reveal them. My guess is the additional wind farm capacity could not be supported easily put getting to the point were they could export it all would probably be far less of an effort.
BTW, I have had solar hot water on my home for about 25 years, a small grid tied solar system for about 21 years that was expanded so I have not bought power from the utility for about 15 years and have not used heating oil for about 7 years. I heat my home with mostly wood (thinned from my wood lot) and a mini split run off excess solar capacity. I also drive a plug in hybrid Rav 4 and charge it from excess solar. Dependent on time of year and where I am going I get 30 to 50 miles of driving "free". Even on the highway I get 40 MPG after the "free" miles are used up. So reducing carbon impact is not impossible it just takes a bit of planning and deciding on priorities.