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Your inverter backup system is only as good as the state of charge of your battery bank

I installed just this morning an imported made in India 3.6kva 48vdc inverter for a client and realized that the charging current was just 11 amps as clearly stated on the inverter manual. I have written severally about most of these inverters from China and India being manufactured using design assumptions that make sense in those countries but don't make sense in Nigeria. Now, the typical battery capacity we use in Nigeria is a 12V 200Ah...... Read more >>

By Afam Nnaji on January, 26 2017

Making sense of inverter backup systems

Concerning using inverter backup systems at home or in the office please keep the following in mind1. Inverter backup systems are not replacements but backup to your primary source of electricity2. Reducing your total energy requirement will help reduce the tota cost of the system and increase the backup time3. Focusing on things like lighting points, electronics and cooling fans will give you the most cost effective solution4. It is cheaper for you to reduce your...... Read more >>

By Afam Nnaji on February, 2 2016

The current exchange rate good for Nigerians that are into local production

The current exchange rate good for Nigerians that are into local production   PMB gets the credit for this whether or not the current crazy exchange rate is an intended consequence of some of his policies. We have resumed the manufacturing of inverters locally using everyday components and parts for Nigerians thanks to the ever increasing price of imported inverters due to the naira-dollar exchange rate issue. We stopped building these inverters sometime last year because...... Read more >>

By Afam Nnaji on January, 31 2016

What energy efficiency means in lay man terms

Let's say I have 15 nos energy saving electric bulbs at home all rated 5W each.Let's say you have 15 nos regular incandescent electric bulbs at home all rated 60W each.My total energy requirement would be 75W and yours would be 900WThe implications1, You will have to pay 12 times whatever I get to pay to PHCN to power the same number of bulbs - you spend more2. You will have to get a higher capacity...... Read more >>

By Afam Nnaji on December, 8 2015

Concerning alternative energy and backup systems

Most of my friends know that the last time a generator was used in my office was sometime in 2005 and without electricity the office practically shuts down. A good number of them know that we build power inverters locally using everyday components you can buy at Oshodi which makes our building process longer and the final product more expensive than the imported inverters from China and India.Well, something just changed and it's a positive development.No...... Read more >>

By Afam Nnaji on December, 7 2015

Steady electricity for Nigerians in 6 months or less

We can get steady power supply in 6 months and we need not break the bank to do so neither do we need to be held hostage by foreign investors that must be pleased by our government at any cost just to solve a problem we can solve ourselves. I must warn you before hand that you may find most of my positions unbelievable and may be tempted to dismiss them but trust me they are...... Read more >>

By Afam Nnaji on January, 25 2011

Failed Solar powered street light projects - any lessons?

It is sad to note that majority of the solar powered street light projects in Ikeja/Ogba axis have failed. It is not uncommon to see about just 2 or 3 poles emitting light on a stretch of road with up to 30 poles. Solar power is a reliable source of energy especially electricity and the fact that majority of the solar powered street lights (including traffic lights in some cases) in the area referenced don't perform...... Read more >>

By Afam Nnaji on November, 10 2010

Problems with implementing alternative energy projects in Nigeria

As the cost of energy from conventional sources like fossil fuel and coal continues to increase and the need to reduce the level of carbon emission that is being argued as being the major cause of global warming remains a popular agenda, the need to turn to renewable energy becomes the only viable and sustainable alternative or solution. What this means is that people, organizations and nations continue to look for ways to cost effectively develop...... Read more >>

By Afam Nnaji on August, 3 2010

Proposed energy tariff hike and privatization; the role energy efficiency can play

Energy remains a moving target and as long as we have population increase and proliferation of electronic and electrical gadgets and appliances the energy requirement will continue to increase. This means that the only reasonable and cost effective approach to addressing the challenges of energy increase is to reduce the energy requirement and the most reliable and functional way to do this remains a strong energy efficiency policy from the government. With a strong energy policy...... Read more >>

By Afam Nnaji on July, 7 2010

How to choose a good backup battery

As the saying goes, your backup system is only as good as the state of charge of your battery or battery bank (2 or more batteries connected together). How can you choose a good deep cycle battery for your inverter backup project? First things first, believe it or not there are no warranties on batteries even in the international market so this means that you are at the mercy of what the manufacturers, distributors, resellers, consultants...... Read more >>

By Afam Nnaji on March, 19 2010


 

Renewable Energy and the Energy Transition

 

 

 

Articles Backup Systems (9) Batteries (1) Battery Chargers (1) Energy (12) Inverters (2) Solar Panels (2)

 

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