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Last login: 04.12.2017
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6
Joined KP: 10.09.2017
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Recently Asked
Sept. 10, 2017, 5:11 p.m.
How do I set up a solar photovoltaic panel to get the best energy output?
tags: Energy, solar, Photovoltaic
1 answers
111 views
Nov. 1, 2017, 6:47 p.m.
What makes a good windpower site?
tags: Energy, Wind
1 answers
16 views
Nov. 10, 2017, 7:07 a.m.
What’s the best way to mount a solar PV array?
tags: Energy, solar, Photovoltaic
1 answers
33 views
Dec. 1, 2017, 8:35 a.m.
How can I keep electrical loads running when the mains / grid supply is intermittent?
tags: Energy, electricity, Generators, batteries, alternative_energy, Engines, Load_Analysis
1 answers
7 views
Dec. 3, 2017, 5:35 p.m.
How can I keep things cold without mains electricity
tags: Energy, solar, electricity, Photovoltaic, cooling, cold_chain, refrigeration, vaccine_fridge
1 answers
18 views
Recently Answered
Sept. 10, 2017, 5:14 p.m.
How do I set up a solar photovoltaic panel to get the best energy output?

The simple, and obvious, answer is ‘by pointing it at the sun’! However, this can be more involved than it first appears. The sun tracks across the sky from East to West and at its zenith (highest ...

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tags: Energy, solar, Photovoltaic
Dec. 3, 2017, 5:37 p.m.
How can I keep things cold without mains electricity

What are you trying to chill? Cool drinks are good for morale, but hardly essential for life. Chilling food can be crucial for hygiene. Keeping vaccines cool is a life saver. Knowing the value of y...

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tags: Energy, solar, electricity, Photovoltaic, cooling, cold_chain, refrigeration, vaccine_fridge
Dec. 1, 2017, 8:48 a.m.
How can I keep electrical loads running when the mains / grid supply is intermittent?

A common approach is to use a diesel (or for small loads, petrol) generator (‘genset’), but this is expensive and noisy to run. An alternative solution is to use a battery, charger and inverter. Wh...

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tags: Energy, electricity, Generators, batteries, alternative_energy, Engines, Load_Analysis
Nov. 27, 2017, 3:47 a.m.
Small scale off-grid power supplies

The starting point is to assess how much energy in watt-hours (Wh) is needed. Laptop batteries are typically 11 – 15V voltage with a capacity of 2,500 mAh (= 2.5 Ah) to 7,000 mAh.

Voltage (volts,...

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tags: Energy, solar, electricity, Photovoltaic, Hydro
Nov. 10, 2017, 7:09 a.m.
What’s the best way to mount a solar PV array?

A: If a small solar photovoltaic (PV) system is to stay in one place for more than a day or two, the modules (panels) need securely mounting to protect them against wind and theft. There are 3 main...

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tags: Energy, solar, Photovoltaic
Tagged Subjects
Energy, electricity, solar, Photovoltaic, batteries, Generators, cooling, Wind, Engines, alternative_energy, Load_Analysis, inverter, refrigeration, cold_chain, vaccine_fridge, Hydro
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