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Photo by Richard Perez It's available with your choice of two different charge control algorithms, PWM or our popular series control. It's available with your choice of two different charge control algorithms, PWM or our popular series control. doesn't need a fan to run at full power. good news. It means the drill has encountered hard rock. Water is often found at hard rock boundaries. doesn't need a fan to run at full power. You have done your work the rest is...

Kathleen Jarschke Schultze

For the fifth time that day I explained what a Sun Oven was, and why I was hauling that big box around with my luggage. There I was, in Hawaii, about to present solar cooking to people from the Pacific Islands. I speaking on solar cooking at the Renewable Energy, Food Processing, and Eco-Tourism for the Pacific Islands conference on the island of Hawaii. This was a wonderful opportunity for me, so I gathered information and a Burns-Milwaukee Global Sun Oven and took to the skies. The conference...

Things that Work

Ever try to purchase 24 Volt appliances They're out there, but they're nearly impossible to find and are much more expensive than their 12 Volt cousins. So why use 24 Volts for the battery voltage instead of 12 Volts in a home power system Simple When you double the battery voltage in your system, you reduce four-fold the power lost in wiring and connections. In systems that use more than 4,000 Watt-hours daily, a 24 Volt system is highly recommended. To run your 12 Volt appliances from a 24...

Manual Tracker and Mounts for PVs

1 1 2 x 1 x 0.083' rectangular tubing 1 1 2 x 1 x 0.083' rectangular tubing 3 4 NC bolt nut seasonal pivot point 3 8 bolt with handle welded to top, acts as a setscrew 3 steel pipe, Schedule 40 V4 x 1 steel reinforcements 4 per panel Back View 3 4 NC bolt nut seasonal pivot point 3 8 bolt with handle welded to top, acts as a setscrew 1 x 1 x 0.072 wal square tubing 1 2 x 3 1 2 steel plate _ -1 1 2 x 1 x 0.083 wall rectangular tubing 1 1 2' x 1 1 2' x 0.083 wall square tubing I chose to use...

Hydro Power

1992 Paul Craig amp Robert Mathews The Canadian Rockies offer some of the world's most spectacular outdoor experiences deep powder skiing, alpine hiking, and incredible glacier views. The Purcell Lodge is deep in these Canadian Rockies, near the town of Golden, British Columbia, four miles beyond the nearest logging road. Every piece of equipment, all supplies, and the guests are brought in by helicopter. Out here light, heat, and appliances made possible by the lodge's 12 kilowatt...