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The Cool Down is mainstream America's guide to a cleaner, cooler future, making it easy for people from all walks of life to help themselves while helping the planet.
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- Aug 15, 2026earliest in window
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News
Tesla owner gets free Powerwall 3 swap, learns second battery could still cost $700 to $1,000
16+ hour, 46+ min ago (450+ words) "That would be handled by Sales and the two don't mix/cannot be combined." After Tesla notified one customer that their Powerwall 2 would be swapped for a Powerwall 3 at no cost, the customer wondered whether the same visit could also…...
Reddit users say a $50,000 off-grid budget may fall short of a 100-kWh battery bank
17+ hour, 34+ min ago (507+ words) "Can you do ground mount? That will save a lot of money / hassle/ permitting." A homeowner with $50,000 to spend on an off-grid power system turned to Reddit's r/SolarDIY community to ask whether they could design a setup around a…...
Maine homeowner considers solar as owners say snow can 'avalanche' off panels
17+ hour, 58+ min ago (444+ words) "Once you get a small area of your PVs exposed, it'll all slide off quickly due to heat dissipation." For homeowners in snowy states, one of the biggest questions surrounding rooftop solar is what happens when winter storms bury the…...
DIYer asks if 5kWh 'plug-and-play' solar station can run a home, gets 'RV toy' warning
18+ hour, 10+ min ago (437+ words) "Pick your panels and build the strings to match the inverter you end up going with." A homeowner exploring a DIY solar setup turned to Reddit with a simple question: Could a 5-kilowatt-hour "plug-and-play" power station realistically help run an…...
Wisconsin awards $25 million for 42 fast-charging sites as EV network moves beyond interstates
18+ hour, 34+ min ago (466+ words) At minimum, that setup means Wisconsin is set to gain 168 new fast-charging ports. Wisconsin has approved 42 new EV fast-charging sites with $25 million in federal backing as it expands its network statewide. The funding will bring DC fast chargers to several…...
Cheap 2019 Hyundai Ioniq in Norway hits 65kW, making the tiny-battery EV hard to ignore
19+ hour, 10+ min ago (593+ words) "Very first thing to do before buying is listen very carefully to motor and reduction gearbox noises." A cheap used EV in Norway is turning heads for a reason. It has a tiny battery, a modest range, and still managed…...
Tesla reminds Powerwall owners as 'super El Niño' looms: Storm Watch charges for outages
19+ hour, 34+ min ago (470+ words) The automation can be especially useful when storms arrive quickly or when homeowners are away. Tesla is reminding Powerwall owners that one of the backup battery's most practical features could soon become much more important. As forecasters warn that El…...
Buyer eyes Facebook Marketplace solar kit to slash peak power bills, gets backfeed warning
20+ hour, 10+ min ago (411+ words) A solar panel kit on Facebook Marketplace may sound appealing to any homeowner focused on trimming electric bills, particularly during pricey evening rate windows. But after one man shared his plan to use plug-in solar to slash summer energy costs,…...
Homeowner's bill nearly tripled, and Tesla Solar users say the system works but service drags
20+ hour, 22+ min ago (423+ words) "I had TV and internet through the outage, and my fridge didn't spoil." A homeowner worried about soaring electricity bills and alarming online reviews of Tesla Solar turned to Reddit ahead of a scheduled consultation, questioning the trade-off many shoppers…...
China's EV battery recyclers run at full capacity as smelting demand rises
20+ hour, 34+ min ago (474+ words) "Recoveries of nickel and cobalt are up to over 99%." An unglamorous but important side of the electric vehicle boom is taking off. Used EV batteries in Yancheng, Jiangsu, are being dismantled and processed so valuable metals can be recovered and…...