Estimating Energy Generated by your PV System Using the equation below, you can estimate the annual electricity production and electric bill savings for a grid-connected home solar electric system with a net metering arrangement. Determine the PV system’s size in kilowatts (kW). A typical range is from 1 to 5 kW. This value is the… Read more »
GeoPathfinder Many people currently cook in a microwave oven. It’s called “micro” because the high-frequency radio energy used to jiggle the food’s water molecules has a very short wavelength. We call our stove the macrowave because, even though it utilizes radiated infrared energy (heat) which has a much higher frequency and even shorter wavelength, the… Read more »
Straw bale building guidelines for wet and humid climates Climate and Straw bale construction Five tips for keeping straw bale walls dry in a wet climate Yes you can! Build with Strawbale in Wet Climates Moisture and straw bale walls. Sun Plans Strawdio Template Straw Bale Futures Passive Solar Design Lime paint, lime wash and… Read more »
This book describes a way of making compost, i.e. humus, which is simply, labour saving (no turning) and quick, both in ripening the compost and in getting results in the soil. It is adaptible to all conditions and to every size and type of garden, allotment or farm, the process being based on nature’s own methods.
One millimeter of rain on one square metre of roof equals one litre
We’re shopping for land in Hungary and while prices are relatively low, when compared to those in Scotland, it’s possible that our budget will only stretch to a 1-, or 2-acre plot.
To get the most from solar panels you need to point them in the direction that captures the most sun. But there are a number of variables in figuring out the best direction. This page is designed to help you find the best placement for your solar panels in your situation.
Radiant floor heat has become increasingly popular and it’s easy to understand why. This type of heating system works by pumping hot water – or water and propylene glycol (antifreeze) – through a system of tubing under the floor. This means houses using this heating system get warmer from the floor up. In the winter there are no cold floors underfoot – instead the floor is the warmest part of the home.
Prepare to evaluate the current system Buy a multimeter. A £10 – 15 will do. Check the current system Check for 10.5 – 15 volts supply from the current system components. Buy new system components a 300W DC Inverter, a 700VA Uninterruptible Power Supply (UPS). This should have it’s own battery, a 12V DC inline… Read more »
BuildIt Solar Water
Passive Solar Energy Passive Solar Energy as a free heat source for your straw bale house. Read the article A rule of thumb for installed window area East side of the house 4%, west side 2%, north side 4%, and south side 7-12%. So if you had a floor plan of 1000 square feet, on… Read more »
CooKit DIY Solar Cooker