20 Most Recent Velleman SA SOL4UCN2 Solar Panel Charge Controller Questions & Answers


Solar Panel Charge ControllerMCM Part 28 11138Velleman SA Part SOL4UCN2

This is a small charger mostly for small batteries and devices. It puts out max of 4 amps. What type of 12 v battery are you trying to charge?

Velleman SA... | Answered on Jul 14, 2014


Passive solar energy can be used to keep buildings warm. Some buildings have large windows on the side of the building the sun hits. The sun's ray go through the windows and penetrate the heat-absorbent floors and walls. At night, this heat is released into the building.

Renewable Energy | Answered on Sep 13, 2019


No not even close. Fossil fuel industries employ millons

Renewable Energy | Answered on Jun 10, 2019


Not using enough solar panels or total output to match the needs for what you would be using it for. Small solar panels (35-100 watt) are great just to keep 1-4 batteries charged when not in use but if you plan to be running an inverter and powering appliances, living quarters in an RV or larger scale living, that if when you would need A LOT of solar panel and a basement full of batteries to use at all times. A lot of money would be spent on the panels and batteries but if you do not have the right equipment to control the electricity and monitor everything, you may be better if donating the money to a good charity where it will be much more useful and greatly appreciated

Renewable Energy | Answered on Aug 15, 2018


The space industry was one of the first industries to adopt the use of solar energy. It started using solar technology on spacecraft in the 1960's.

Renewable Energy | Answered on May 11, 2018


Solar energy is the output from our sun though not strictly correct it is sufficient for most purposes to say it is the sun's energy that reaches Earth. It includes a wide spectrum of different frequencies/temperatures of light and energy and various types of particle and electromagnetic radiation, a significant proportion of much of the content is deflected by the Earth's magnetic field and various layers of the atmosphere.

The solar energy reaching the Earth's surface is reckoned to average the warming equivalent of 3kW/hr per square metre.

Photovoltaic (PV) is a process that converts the Sun's heat/light into electricity and should not be confused with the Solar/thermal systems designed to use the sun's heat/light radiation to heat water. Mostly this is used for domestic purposes but some large installations exist where large mirrors concentrate light onto a solar panel with enough heat to produce sufficient steam to drive a turbine/generator to produce electricity.

Photosynthesis, incidentally, is the method plants use to convert atmospheric CO2 into growth using energy from the sun.

Renewable Energy | Answered on Dec 27, 2017


I have built a wind generator and have a schematic in simple terms

Renewable Energy | Answered on Nov 26, 2014


You can buy wind turbine generators from Amazon here:
http://www.amazon.com/s/ref=nb_sb_sabc?url=search-alias%3Daps&pageMinusResults=1&suo=1367394691758#/ref=nb_sb_ss_i_0_14?url=search-alias%3Daps&field-keywords=wind%20turbine%20generator&sprefix=wind+turbine+g%2Caps%2C256&rh=i%3Aaps%2Ck%3Awind%20turbine%20generator&sepatfbtf=true&tc=1367394695955

Renewable Energy | Answered on Apr 04, 2014


I just found this on the Home Science Tools site. The instructions here are for kids, but they do say they will need an adult's help, so I hope it's what you were looking for:
http://www.hometrainingtools.com/build-a-solar-oven-project/a/1237/

Renewable Energy | Answered on Jul 23, 2013


The first solar cell was built by Bell Labaratories.

Renewable Energy | Answered on Jul 23, 2013

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