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alternative energy
please take a look at the
rocket stove
article
Best ever
alternative energy
The Wheaton Eco Scale
234 replies
3
23
17
alternative energy
It is 2019 and incandescent is still better than LED
152 replies
11
16
10
alternative energy
washing dishes by hand vs. dishwasher: water, expense and time
70 replies
2
6
8
alternative energy
really saving energy - eliminate the clothes dryer
134 replies
1
12
15
alternative energy
How to Make Your Own Emergency Home Battery Bank
1
123
3
alternative energy
3 different rocket stove water heater designs, input requested
36 replies
9
1
alternative energy
Rocket Mass Wood Dryer - An Ecoquest Project for Willie Smits
58 replies
3
41
5
alternative energy
bragging: lower energy footprint
120 replies
2
1
alternative energy
Nickel-Iron 'Edison' Batteries
72 replies
1
6
alternative energy
washing dishes: by hand vs. dishwasher
106 replies
2
5
2
Heat for Dummies Flow-chart: Function--heating; which cool gadget should I actually use?
34 replies
8
3
ban on incandescent light bulbs
108 replies
4
2
crisco candle
45 replies
4
alternative energy
Using a bicycle generator to recharge a battery bank
47 replies
3
4
6
alternative energy
alternative hot water and legionnaires' disease
81 replies
3
4
make your own incandescent light bulb
34 replies
10
4
4
alternative energy
Appropriate Technology Course Teacher's Notes by Tim Barker (DRAFT)
5
alternative energy
If you live in a city, get an electric (or hybrid) car!
37 replies
5
4
alternative energy
Is pedal power cleaner, more durable, with less environmental impact than solar or wind?
32 replies
5
4
14
Is this a scam? Liberty Generator (electricity from composting)
13 replies
1
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Best this year
alternative energy
Is pedal power cleaner, more durable, with less environmental impact than solar or wind?
32 replies
5
4
14
Turning wood into electricity for 2 months of the winter
88 replies
4
2
12
Can I burn olive oil in my oil lamps?
7 replies
2
2
2
alternative energy
Sustainable Energy - without the hot air by David MacKay
4
7
Excess energy?
34 replies
2
2
Charcoal gasification for garden tractor?
13 replies
2
1
Energy Storage
26 replies
1
3
1
Converting mechanical energy to heat
8 replies
2
3
Transmission Distance
13 replies
1
1
DIY Fridge with water from stream?
10 replies
2
1
alternative energy
Bicycle powered kinetic log splitter?
9 replies
3
2
Recognizing the Many Faces of Jean Pain
9 replies
1
1
Solar Panels and a Sefton Heat Engine. Need inverter recommendations.
10 replies
Positive things about biofuels.
5 replies
1
1
where to begin with energy sources - hydro, wind, solar? site analysis?
9 replies
1
New Open Source Gasifier
5 replies
1
1
TEG thermoelectrics
14 replies
1
2
What are the ingredients of hot compost for heating water like the Jean Pain method?
5 replies
1
1
Geothermal heating in an underground house?
7 replies
Help from a supercapacitor.
5 replies
1
1
1
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alternative energy Forum at permies
alternative energy
Book review - The Sun Betrayed
44 minutes ago
3 replies
make your own incandescent light bulb
3 days ago
34 replies
10
4
4
Has anyone toured the Anaerobic Bioreactor in Montana?
6 days ago
0 replies
alternative energy
Gravity Lighting and the Grandfather Clocks
1 week ago
0 replies
3
3
books
Sustainable Energy - without the hot air by David MacKay
1 week ago
4
7
Build your own A/C that is comparable to conventional A/C output, without the Freon
1 week ago
1 reply
2
Can I burn olive oil in my oil lamps?
1 month ago
7 replies
2
2
2
App Tech Cooking: New TreeYo EDU Article
1 month ago
0 replies
1
Supplemental winter heat from sun brought in house?
1 month ago
18 replies
1
1
1
bicycle
Bicycle powered kinetic log splitter?
1 month ago
9 replies
3
2
Harvesting Methane from Water
1 month ago
1 reply
conservation
It is 2019 and incandescent is still better than LED
1 month ago
152 replies
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3
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4
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11
16
10
long term storage of solar heat
1 month ago
5 replies
1
Charcoal Gasification : Tractor edition
2 months ago
2 replies
2
1
Illustrated book of appropriate technologies.
2 months ago
1 reply
1
Compost mound for heating water-----Jean Paine---pack it tight or leave it loose?
2 months ago
27 replies
3
alternative energy
Heating With Renewable Energy | 1St Edition John Siegenthaler
3 months ago
1 reply
Is this a scam? Liberty Generator (electricity from composting)
3 months ago
13 replies
1
Thermoelectric Generators (TEGs)
3 months ago
15 replies
1
Energy Storage
3 months ago
26 replies
1
3
1
New Open Source Gasifier
3 months ago
5 replies
1
1
winter warming with compost vs rocketmass
4 months ago
3 replies
solar
How to Make Your Own Emergency Home Battery Bank
$34.95
4 months ago
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2
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1
123
3
transportation
If you live in a city, get an electric (or hybrid) car!
4 months ago
37 replies
5
4
solar
DIY Solar Oven
4 months ago
24 replies
22
28
1
alternative energy
Yakhchāl - off grid A/C and refrigeration (for the off grid folks)
4 months ago
7 replies
1
1
wheaton laboratories
2018 Off-Grid Rocket Kitchen Build, May 17-19
4 months ago
31 replies
7
7
Rowing machine washing machine
4 months ago
5 replies
3
1
digital market
Appropriate Technology Course Teacher's Notes by Tim Barker (DRAFT)
$9.00
4 months ago
5
Plasma insights into nature
4 months ago
0 replies
1
1
mechanical energy storage
5 months ago
67 replies
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2
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16
1
4
Converting mechanical energy to heat
5 months ago
8 replies
2
3
alternative energy
Is pedal power cleaner, more durable, with less environmental impact than solar or wind?
5 months ago
32 replies
5
4
14
A washing machine that works with very low water pressure?
5 months ago
11 replies
3
paul wheaton
Rocket Ovens DVD as HD Instant view
$20.00
5 months ago
42 replies
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2
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2
6
6
Water versus cob – thermal storage
6 months ago
17 replies
2
composting
Brick 4 of 72 - 500 hot showers from one small compost pile by Paul Wheaton
6 months ago
2
Solar Panels and a Sefton Heat Engine. Need inverter recommendations.
6 months ago
10 replies
Quartz Crystal Wafer Invention for ENERGY
6 months ago
0 replies
1
Engine Modification - increase power - lower emissions - save money
6 months ago
41 replies
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2
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wood burning stoves
Steam Injected Wood Burner
7 months ago
1 reply
1
Gravity flow hot and cold seperation apparatus
7 months ago
1 reply
New TreeYo EDU article: App tech chapter: Renewable Electricity production..
7 months ago
1 reply
1
Mollison's Trompe - alternative energy
7 months ago
47 replies
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alternative energy
Heating without electricity
2 years ago
22 replies
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energy
conservation
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wood burning stoves
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rocket stoves
26520
rocket mass heaters
26006
solar
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hydro
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wind
871
biogas
845
biodiesel
369
transportation
1651
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rocket ovens
1237
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