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Religion / Re: Man "Cured" Of HIV By Pastor Alph Lakau, Dies After Failing To Take His Drugs by SolnergyPower: 10:37am On Mar 28, 2019 |
This is insensitive (Hoe-ly) please. freethinker01: 18 Likes |
Crime / Re: Fake Doctor With Illegal Medical Facility Arrested In Cross Rivers.photos by SolnergyPower: 10:35am On Mar 28, 2019 |
Oops |
Crime / Re: Breaking: Why We Settled For Lawan As Senate President, By APC by SolnergyPower: 6:17pm On Mar 27, 2019 |
Akpabio Akpabio!!! |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by SolnergyPower: 6:15pm On Mar 27, 2019 |
Still in Stock! SolnergyPower:
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Politics / Re: 8th Nass's Reputation Management As EU De-lists Nigeria From High Risk Countries by SolnergyPower: 5:22pm On Mar 27, 2019 |
Commendable! |
Education / Re: Primary School Students Spotted Crossing A Bamboo Bridge To A School In Imo by SolnergyPower: 6:55pm On Mar 25, 2019 |
Let's not blame the government all the time. The settlers can do a proper makeshift bridge that will serve the purpose. |
Politics / Re: We Are No Longer Responsible For Electricity Meters - Discos Tell Consumers by SolnergyPower: 6:21pm On Mar 25, 2019 |
Simply put, we no get stable light any time soon! |
Sports / Re: Nigeria Vs Libya: U23 AFCON Qualifier (4 - 0) On 25th March 2019 by SolnergyPower: 4:22pm On Mar 25, 2019 |
Crime / Re: Does The Police Have The Right To Stop And Search My Car? by SolnergyPower: 2:53pm On Mar 25, 2019 |
Good one! |
Sports / Re: Nigeria Vs Libya: U23 AFCON Qualifier (4 - 0) On 25th March 2019 by SolnergyPower: 2:29pm On Mar 25, 2019 |
Will any TV station show it? |
Politics / Re: Bauchi Residents Ask Governor Abubakar To Concede Defeat To PDP by SolnergyPower: 10:22pm On Mar 24, 2019 |
Gbam! |
Politics / Re: ''charly Boy Is The Number One Mumu In Nigeria'' - Deji Adeyanju Says by SolnergyPower: 2:06pm On Mar 20, 2019 |
What! |
Celebrities / Re: Tosin Silverdam: Adesua Etomi Vogue Magazine Cover Is Disappointing, Inferior by SolnergyPower: 9:13pm On Mar 18, 2019 |
Okay oh 1 Like 1 Share |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by SolnergyPower: 11:15am On Mar 18, 2019 |
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Satellite TV Technology / Re: Solar Energy, A Complement To FTA by SolnergyPower: 8:24am On Mar 18, 2019 |
We have this rugged 200AH, 12V INVA TUBULAR GSR POWER battery in stock. Made in India. 96k/One. 1½ years warranty. Ca.ll/Whats.App: 0803*334*3911 http//JezPower.com 2 Likes 1 Share
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Politics / Re: Onnoghen: EFCC Combs Ex-cjn’s Farm In Nasarawa, Confiscates Documents by SolnergyPower: 11:46am On Mar 17, 2019 |
This is getting very interesting! 1 Like |
NYSC / Re: Godspower Asuquo: Corper Celebrates With Mother At The Market After Passing Out by SolnergyPower: 1:25pm On Mar 15, 2019 |
Simply Awesome! |
Sports / Re: Neymar Tests His Injured Foot Strength In Qatar Ahead Of Return (Photos by SolnergyPower: 12:20pm On Mar 10, 2019 |
Interesting! |
Autos / Re: Honda Civic 2005 #580k sold sold by SolnergyPower: 8:16pm On Mar 05, 2019 |
Interesting. Please can you provide more pics like that of engine and interior? Many thanks. |
Travel / Re: Why Do The Law Enforcers Tolerate Hanging On Vehicles On Roads In Lagos (PHOTOS) by SolnergyPower: 6:34pm On Mar 05, 2019 |
....because it's a mode of transportation. Simple! |
Celebrities / Re: Photos From Desmond Elliot Door To Door Campaign In Surulere by SolnergyPower: 7:30am On Mar 05, 2019 |
Nice guy. 2 Likes 2 Shares |
Satellite TV Technology / How Does Depth Of Discharge Factor Into Grid Connected Battery Systems? by SolnergyPower: 10:24pm On Mar 04, 2019 |
There are several criteria to consider when designing a battery system but it is Depth of Discharge (DOD) that has a prominent effect on the lifespan of the battery In order to design a battery that will last and provide reliable service for its full rated life, there are several criteria to consider, some of which have already been covered in our Battery O&M article. Operating temperature, voltage, charging and discharging rates as well as planned depth of discharge and days of autonomy are all key terms that are factored into the battery size and type – but one of these items, Depth of Discharge (DOD), has a prominent effect on the lifespan of the battery. DOD is very closely linked with Cycle Life – or the number of discharge cycles a battery can complete before being reduced to 80% of its original capacity (the point at which a battery is considered to have passed its useful life). Although the most common type of battery chemistry for solar use is lead acid, DOD affects every battery chemistry to some extent. It is very common to hear of battery designers simply doubling the size of a battery based on calculated loads and discharge duration to achieve a 50% DOD and arrive at an overall battery size and budget. For the lead acid battery, this is but the starting point. Generally speaking, there are two types of deep cycle solar connected batteries. The most common is the Off Grid battery that cycles every day and has enough size to weather extended low irradiance. The second most common is a battery sized for occasional backup and reserve power – also notably with Grid Tied AC coupled systems. Assuming the loads and days of autonomy are already known, how does an AC coupled back up battery differ in size from an off grid battery? The battery is an array of cells – in series and parallel. Each cell is a chemical reaction and if the chemical reaction can be kept within a sustainable window, then the capacity of each cell to support the reaction can stay strong for the full rated life of the battery and even longer. Here is a typical plot of battery life cycles vs. DOD. At 50% DOD, the referenced battery is expected to last 1150 cycles before its capacity is reduced to 80% of original, but at 20% DOD per cycle, the battery could be expected to last 3300 cycles (or 9 years at 1 cycle per day) – which is a respectable design target for an Off Grid battery. Keeping the cycle life of a battery in mind – what is a more accurate guideline than the “50% rule”? For off grid applications, where the battery can be expected to cycle every day, a better guideline would be to design to a DOD of 20%, not 50%. For grid tied systems with batteries used for backup only, DOD can be taken much further since the grid can be expected to cover at least some of days that the system is running and hopefully most of them – we don’t want to plan for 100% DOD – extreme discharging can permanently damage a battery. But if we planned for 80% DOD that would allow us 675 cycles, and it’s unlikely that we’d experience 675 days of power outages in a 10 year period. In summary, when designing a battery for backup use, Depth of Discharge can be set considerably lower that when designing a battery for daily, cycling use. So, for example, if a system with 500Ah of projected demand is connected to a relatively healthy grid, with only occasional outages expected, and the battery is a high quality deep cycle battery, what might have been a 1000Ah battery with a 50% DOD design, can now be a 600Ah battery with a periodic discharge of 80% - a substantial savings in cost and space. Reference: https://www.civicsolar.com/support/installer/articles/how-does-depth-discharge-factor-grid-connected-battery-systems
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Satellite TV Technology / Re: Solar Energy, A Complement To FTA by SolnergyPower: 10:19pm On Mar 04, 2019 |
I came across this beautiful piece and I thought newbies can learn a thing or two from it... How does Depth of Discharge factor into Grid Connected battery systems? There are several criteria to consider when designing a battery system but it is Depth of Discharge (DOD) that has a prominent effect on the lifespan of the battery In order to design a battery that will last and provide reliable service for its full rated life, there are several criteria to consider, some of which have already been covered in our Battery O&M article. Operating temperature, voltage, charging and discharging rates as well as planned depth of discharge and days of autonomy are all key terms that are factored into the battery size and type – but one of these items, Depth of Discharge (DOD), has a prominent effect on the lifespan of the battery. DOD is very closely linked with Cycle Life – or the number of discharge cycles a battery can complete before being reduced to 80% of its original capacity (the point at which a battery is considered to have passed its useful life). Although the most common type of battery chemistry for solar use is lead acid, DOD affects every battery chemistry to some extent. It is very common to hear of battery designers simply doubling the size of a battery based on calculated loads and discharge duration to achieve a 50% DOD and arrive at an overall battery size and budget. For the lead acid battery, this is but the starting point. Generally speaking, there are two types of deep cycle solar connected batteries. The most common is the Off Grid battery that cycles every day and has enough size to weather extended low irradiance. The second most common is a battery sized for occasional backup and reserve power – also notably with Grid Tied AC coupled systems. Assuming the loads and days of autonomy are already known, how does an AC coupled back up battery differ in size from an off grid battery? The battery is an array of cells – in series and parallel. Each cell is a chemical reaction and if the chemical reaction can be kept within a sustainable window, then the capacity of each cell to support the reaction can stay strong for the full rated life of the battery and even longer. Here is a typical plot of battery life cycles vs. DOD. At 50% DOD, the referenced battery is expected to last 1150 cycles before its capacity is reduced to 80% of original, but at 20% DOD per cycle, the battery could be expected to last 3300 cycles (or 9 years at 1 cycle per day) – which is a respectable design target for an Off Grid battery. Keeping the cycle life of a battery in mind – what is a more accurate guideline than the “50% rule”? For off grid applications, where the battery can be expected to cycle every day, a better guideline would be to design to a DOD of 20%, not 50%. For grid tied systems with batteries used for backup only, DOD can be taken much further since the grid can be expected to cover at least some of days that the system is running and hopefully most of them – we don’t want to plan for 100% DOD – extreme discharging can permanently damage a battery. But if we planned for 80% DOD that would allow us 675 cycles, and it’s unlikely that we’d experience 675 days of power outages in a 10 year period. In summary, when designing a battery for backup use, Depth of Discharge can be set considerably lower that when designing a battery for daily, cycling use. So, for example, if a system with 500Ah of projected demand is connected to a relatively healthy grid, with only occasional outages expected, and the battery is a high quality deep cycle battery, what might have been a 1000Ah battery with a 50% DOD design, can now be a 600Ah battery with a periodic discharge of 80% - a substantial savings in cost and space. Reference: https://www.civicsolar.com/support/installer/articles/how-does-depth-discharge-factor-grid-connected-battery-systems 1 Like
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Politics / Re: BREAKING: Court Nullifies Candidature Of PDP Gubernatorial Candidate In Kano by SolnergyPower: 2:26pm On Mar 04, 2019 |
Politics / Re: President Buhari Delegates Osinbajo To Represent Him In Akwa Ibom State Today. by SolnergyPower: 1:23pm On Mar 04, 2019 |
Used and dumped! Akpabio Akpabio! 2 Likes |
Celebrities / Re: Top 10 Richest And Highest Paid Gospel Musicians In Nigeria 2019 by SolnergyPower: 10:01am On Mar 02, 2019 |
Five of them from Christ Embassy! Thank you Pastor Chris Oyakhilome 15 Likes 2 Shares |
Family / Re: Solar Pump Installation by SolnergyPower: 5:39pm On Mar 01, 2019 |
That should be about 2.5HP of a normal AC pump but solar pumps are much more efficient. Dolphin01: |
Politics / Re: Updated: NBC Sanctions AIT, NTA, Channels, And Others-threatens Outright Closure by SolnergyPower: 5:32pm On Mar 01, 2019 |
NBC clap for ya self! 6 Likes 1 Share |
Politics / Re: Photos Of Fake INEC Staff, Policemen Arrested By Army For "Working For Wike". by SolnergyPower: 2:36pm On Feb 27, 2019 |
That's the honourable's official vehicle riddled with bullets on the day of the assassination attempt! This honourable has been through a lot this electioneering period! rexington:
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Politics / Re: Segun Sowunmi Leaked Tape: 'Atiku Can't Win Except Rigging' by SolnergyPower: 11:03am On Feb 12, 2019 |
Properties / Re: Solar Power & Boreholes Jobs (FULL Pictures) Ask ANY questions NO SECRETS by SolnergyPower: 11:26pm On Feb 03, 2019 |
If your pump is the normal AC type, you'll need solar panels, inverter and batteries. But if it's a DC pump, you'll need only solar panels. jaz: |
Satellite TV Technology / Re: Solar Energy, A Complement To FTA by SolnergyPower: 1:55pm On Feb 03, 2019 |
Welcome to Solar DIY. Your inverter can power the 500W load, congrats. As for how to do the connection, please provide the following to help us properly advise you... a. DC input Voltage of the Inverter b. Maximum DC input voltage of the solar charge controller. Thank you. durumibaka: |
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