Solar requirement:

I sometimes get headed by the question whether I can go independent of EB and rely completely on Solar?
The most dreaded question of all...

Well  first of all, it’s completely possible, people are running boats on solar, 2012 Olympics in London saw solar powered river shuttles and, planes working on solar panels, satellite use panels for a long time.

But the cost is high well yes it is, and I don’t deny it, as a matter of fact I will be the first person to tell you that.  But there is a trick to a great investment in solar energy. But then again I am not saying peanuts, but it will be tremendously lower than the first idea you said.

The thing is first of all we have to define independence the right way,

It does not mean you have everything and you are happy which is impossible, but what it means is to be content with what we have, and limiting our use according to that.

Once you can embrace this idea, you can survive in this world happily. Going back to solar:

If you have a geyser, switch to solar water heater. Convert all the outside lighting into street lamp or solar powered timed Led lamps.  

There are three costs in a solar power plant:

1)      Panel cost

2)      Battery and charger

3)      Wiring

Panel: Buy only the ones made by are responsible company and do not go for cheapest which could be a disaster, because you have to use it for at least 25 years, and since hydrogen storage is not yet realizable in the low cost in the mean time

So what is the trick to investing securely?

Find out your usage per day.

Take every light, fan, TV, computer, mixer, and anything below a 750 watts and that uses continuous supply of current unlike which starts and stops every now and then  and multiply each by corresponding hours of avg usage and total it and divide by 1000 and call it  A. Every kilowatt can produce 4 units per day and about 5 using an MPPT charger. Divide A /5 and find the Kilowatts required. Select a very low range battery with low Ah because it can be cheaper and gives you a decent 2 hour back up, let’s say, 150 Ah. Take the load you are going to running in KW’s and divide it by .7 and you will get the KVA for UPS. Buy it and install.
here in UPS again we have options, we can go for a regular inverter or we can go for a solar home UPS. the basic difference being, solar home ups have built in charge controllers that project the production into the main line and if not used, is either used to charge batteries and if the batteries are charged, it is drained back into earth.  

Putting Ac’s and refrigerators will get costlier, because, It needs a higher KVA UPS, which might scare a person by the cost.

Advantage by this method you shell only a part of what you should spend, and this will make you aware of how it has to be used. After a week you will start using everything in your house depending on how the sun shines and then you can think of upgrading.

Like putting a 12 V wiring

Buying devices with high star rating.

 Change all lamps to Led lights.