No need to go for UPS which are costly. They are meant for Table top PC's to prevent loss of data at power failures. Using UPS for normal Light and Fan is not required. Cheaper solution is to go for Battery charged with AC main and use normal AC sine wave inverter for other uses. This could be a cheaper option. Use deep cycle maintenance free batteries. If you have plenty of money you can go for UPS to take all the possible loads. You can have a normal AC battery charger also added if you need same. Using Micro MPPT charger on the Solar PV circuit will increase the amount of electricity charging the battery.Micro-inverters have several advantages over conventional central inverters. The main advantage is that, even small amounts of shading, debris or snow lines in any one solar panel, or a panel failure, does not disproportionately reduce the output of an entire array. Each micro-inverter obtains optimum power by performing maximum power point tracking for its connected panel. - for further FREE details any one can contact me by email -- vkgnana@gmail.com -- Good morning to every one in India,--http://en.wikipedia.org/wiki/Solar_micro-inverter -- How to calculate your solar power requirements
There are three things to consider choosing a Solar panel or creating a Solar system.
You need to know how much energy your battery can store and then select a Solar panel that can replenish your ‘stock’ of energy in the battery in line with your pattern of use.
1: How much energy can your battery store?
Battery capacity is measured in Amp Hours (eg 20 AH). You need to convert this to Watt Hours by multiplying the AH figure by the battery voltage (eg 12V).
For a 20 AH, 12V battery the Watt Hours figure is 20 x 12 = 240 WH
This means the battery could supply 240W for 1 hour, or 120W for 2 hours i.e. the more energy you take, the faster the battery discharges.
2: How much energy will your appliance(s) use over a period of time?
The power consumption of appliances is given in Watts (eg Standard LED lamp, 7W). To calculate the energy you will use over time, just multiply the power consumption by the hours of use.
The 7W LED light fitting, on for 2 hours, will take 7 x 2 = 14WH from the battery.
Repeat this for all the appliances you wish to use and then add the results to establish total consumption.
3: How much energy can a Solar panel generate over a period of time?
The power generation rating of a Solar panel is also given in Watts (eg 50W). To calculate the energy it can supply to the battery, multiply Watts by the hours exposed to sunshine, then multiply the result by 0.9 (this factor allows for natural system losses).
For the Solar 50W panel in 5.5 Average hours of sunshine a good figure for TN:-, 50 x 5.5 x 0.9 = 247.5 WH. This is the amount of energy the Solar panel can supply to the battery. Battery has storage efficiency of 0.9 to give as output
4. How much will the Solar PV cost now in India as per Eg. PEP INFOTECH LTD the price is $1.5 to 2.6 depends on the quantity of purchase. http://www.pepteller.com/pepteller_solar_panel.html -
So you may be able to get your 50W Solar PV for about INDRs. 5000 to 6500 only. This is a good way to get away from Darkness and to get some comfort during power cuts. Best wishes and Good morning.
— with Jayamani Kumara and 11 others.There are three things to consider choosing a Solar panel or creating a Solar system.
You need to know how much energy your battery can store and then select a Solar panel that can replenish your ‘stock’ of energy in the battery in line with your pattern of use.
1: How much energy can your battery store?
Battery capacity is measured in Amp Hours (eg 20 AH). You need to convert this to Watt Hours by multiplying the AH figure by the battery voltage (eg 12V).
For a 20 AH, 12V battery the Watt Hours figure is 20 x 12 = 240 WH
This means the battery could supply 240W for 1 hour, or 120W for 2 hours i.e. the more energy you take, the faster the battery discharges.
2: How much energy will your appliance(s) use over a period of time?
The power consumption of appliances is given in Watts (eg Standard LED lamp, 7W). To calculate the energy you will use over time, just multiply the power consumption by the hours of use.
The 7W LED light fitting, on for 2 hours, will take 7 x 2 = 14WH from the battery.
Repeat this for all the appliances you wish to use and then add the results to establish total consumption.
3: How much energy can a Solar panel generate over a period of time?
The power generation rating of a Solar panel is also given in Watts (eg 50W). To calculate the energy it can supply to the battery, multiply Watts by the hours exposed to sunshine, then multiply the result by 0.9 (this factor allows for natural system losses).
For the Solar 50W panel in 5.5 Average hours of sunshine a good figure for TN:-, 50 x 5.5 x 0.9 = 247.5 WH. This is the amount of energy the Solar panel can supply to the battery. Battery has storage efficiency of 0.9 to give as output
4. How much will the Solar PV cost now in India as per Eg. PEP INFOTECH LTD the price is $1.5 to 2.6 depends on the quantity of purchase. http://www.pepteller.com/pepteller_solar_panel.html -
So you may be able to get your 50W Solar PV for about INDRs. 5000 to 6500 only. This is a good way to get away from Darkness and to get some comfort during power cuts. Best wishes and Good morning.
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