Think about all the solar panels you have ever seen and it will dawn on you that they all have something in common – they are all rectangular. Why would that be?
As a general rule monocrystalline solar panels are rectangular becau...
Hydropower for home : Is it an option?
Renewable energy is a big deal at the moment. For many people, it just makes sense to create energy from the sun or the wind. It saves resources and creates less pollution.
The push for renew...
What is passive heating and cooling?
In 2010 I decided to build a house using passive solar design principles, so I researched the whole subject from the ground up.
Passive solar building is a modern type of design in which the he...
How many solar panel watts to run a fridge?
The average domestic fridge uses 350kWh of electrical energy per year and would need 300 watts of solar panels to supply it. A 100Ah would also be needed as reservoir to supply compresso...
How do you work out how long a 100Ah battery will run a fridge?
In this post I look at the question: How Long will a 100 amp-hour battery run a fridge?
Like many complex questions, the answer depends on these smaller questions:...
What Size Battery Will Run A Refrigerator?
Fridges are a special case among domestic appliances, in a group together with air conditioners, freezers and heat pumps.
These types of appliances have compressors on board driven by AC...
Solar panels do work on a cloudy day but at a reduced efficiency. Output may be only 10% to 25% of the solar array rating and exactly how much depends on Cloud Cover Factor (CCF). Paradoxically, solar panel output with passing clo...
How much solar energy do you need for a 5kW AC unit?
How Many Solar Panels Needed To Run 5 Ton Ac Unit?
Most home appliances draw a steady current, which you can work out from its power rating in watts. Once you have that you can...
How many panels would you need to run solar AC?
As a general rule, solar panels can run an AC unit. The number of solar panels and battery backup capacity is determine by the energy required by the AC unit, the size of solar panel...
How many solar panels needed to recharge a 100Ah battery?
This is what you need to know to work how many solar panels you need to recharge your 100Ah battery:
What type of battery are you using – lead-acid or lithium-based?
What...
Why solar panels are bad for the environment – pollution
Why Solar Panels Are Bad For Our Planet
All manufactured goods use a variety of chemicals both in their final construction and in the processes used to produce them.
All che...
30 amps charge controller – how much power in watts?
How many watts will a 30 amp charge controller handle?
Charge controller specification sheets don’t normally indicate a maximum power rating in watts. After all, this can easily...
