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alternative energy

please take a look at the rocket stove article

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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

Is pedal power cleaner, more durable, with less environmental impact than solar or wind?

37 replies 5 6 17

alternative energy

Nickel-Iron 'Edison' Batteries

72 replies 1 6

Why Paul Wheaton is Wrong About CFLs

77 replies 6 3

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

39 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

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Best this year

alternative energy

Is pedal power cleaner, more durable, with less environmental impact than solar or wind?

37 replies 5 6 17

alternative energy

What is "Appropriate Technology"?

17 replies 2 8

alternative energy

Flashlight, light toy, no batteries, no switches.

8 replies 1 3

Can I burn olive oil in my oil lamps?

7 replies 2 2 2

Bleach lighting for sheds?

17 replies 3 2

Charcoal gasification for garden tractor?

13 replies 2 1

Converting mechanical energy to heat

8 replies 2 3

Redundant energy and resource use for household appliances

9 replies

Gales, Electricty and Stacking Functions

5 replies 1

Treadmill motor to charge batteries

11 replies 1 2

alternative energy

Alternative heating system for Victorian property?

7 replies 2

DIY Fridge with water from stream?

10 replies 2 1

alternative energy

Bicycle powered kinetic log splitter?

9 replies 3 2

hydronic heating 'versus' RMH || +thoughts on hydronic heating/cooling versus geothermal earth tubes

10 replies

Energy efficiency

6 replies 2

Solar Panels and a Sefton Heat Engine. Need inverter recommendations.

10 replies

Positive things about biofuels.

5 replies 1 1

Advice for heating a home in Connecticut

5 replies

where to begin with energy sources - hydro, wind, solar? site analysis?

9 replies 1

alternative energy

Gravity Lighting and the Grandfather Clocks

0 replies 3 3 1

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alternative energy Forum at permies

electric generator powered by hot air /steam

1 hour ago 18 replies 3 1

alternative energy

Alternative heating system for Victorian property?

4 days ago 7 replies 2

New TreeYo EDU Article: Water Heating: Appropriate Technology Chapter

1 week ago 0 replies 3

blatant advertising

Flashlight, light toy, no batteries, no switches.

1 week ago 8 replies 1 3

natural building

What is "Appropriate Technology"?

1 week ago 17 replies 2 8

Energy efficiency

2 weeks ago 6 replies 2

alternative energy

Is pedal power cleaner, more durable, with less environmental impact than solar or wind?

2 weeks ago 37 replies 5 6 17

Treadmill, bicycle, or exercise wheel electric generator

3 weeks ago 2 replies

Treadmill motor to charge batteries

3 weeks ago 11 replies 1 2

Reuse 6 volt batteries

4 weeks ago 1 reply

paul wheaton

Rocket Ovens DVD as HD Instant view

$15.00

1 month ago 43 replies [ 1, 2 ] 2 11 6

Straw heating

1 month ago 4 replies 6

Bleach lighting for sheds?

1 month ago 17 replies 3 2

Best light source i have found

1 month ago 3 replies 2 1

Building a 24v Generator to charge a 24v battery bank

1 month ago 16 replies

Does anyone know how to make DIY energy panel to harvest the energy from snow?

1 month ago 1 reply 1

Redundant energy and resource use for household appliances

1 month ago 9 replies

Air Source Heat Pumps

1 month ago 12 replies

Advice for heating a home in Connecticut

2 months ago 5 replies

make your own incandescent light bulb

2 months ago 39 replies 10 4 4

permaculture

permaculture tinkerers presentation

2 months ago 33 replies 22 17

hydronic heating 'versus' RMH || +thoughts on hydronic heating/cooling versus geothermal earth tubes

2 months ago 10 replies

Gales, Electricty and Stacking Functions

2 months ago 5 replies 1

Efficient and sustainable energy options for a business

2 months ago 9 replies

Excess energy?

3 months ago 42 replies [ 1, 2 ] 2 2 2

alternative energy

Job posting in California for testing and researching off grid equipment and lighting

3 months ago 0 replies

Anyone found BMS options for Leaf Lithium ion batteries in a RV solar energy storage system?

3 months ago 2 replies 1

Why Paul Wheaton is Wrong About CFLs

3 months ago 77 replies [ 1, 2 ] 6 3

alternative energy

Book review - The Sun Betrayed

3 months ago 5 replies

Has anyone toured the Anaerobic Bioreactor in Montana?

3 months ago 0 replies

alternative energy

Gravity Lighting and the Grandfather Clocks

3 months ago 0 replies 3 3 1

books

Sustainable Energy - without the hot air by David MacKay

3 months ago 4 7

Build your own A/C that is comparable to conventional A/C output, without the Freon

3 months ago 1 reply 2

Can I burn olive oil in my oil lamps?

4 months ago 7 replies 2 2 2

App Tech Cooking: New TreeYo EDU Article

4 months ago 0 replies 1

Supplemental winter heat from sun brought in house?

4 months ago 18 replies 1 1 1

bicycle

Bicycle powered kinetic log splitter?

4 months ago 9 replies 3 2

Harvesting Methane from Water

4 months ago 1 reply

conservation

It is 2019 and incandescent is still better than LED

4 months ago 152 replies [ 1, 2, 3, 4 ] 11 16 10

long term storage of solar heat

4 months ago 5 replies 1

Charcoal Gasification : Tractor edition

5 months ago 2 replies 2 1

Thermoelectric Generators (TEGs)

6 months ago 16 replies 1

mechanical energy storage

8 months ago 67 replies [ 1, 2 ] 16 1 4

alternative energy

Heating without electricity

2 years ago 22 replies 3

Keshe Foundation

7 years ago 4 replies
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