Looking at the situation happening in the Middle East, I think it's the best time to move towards the renewable energy sources. And in that first step is to get the solar water heater. This is because the solar water heater is the cheapest way to get into the renewable energy.
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Say for example, you have a house and you have 2 to 3 geysers at house. Now to buy the geyser you have to pay atleast 5K which means 15K you have to pay and also you have to pay the electric cost every month. And at almost the same price or little extra you can get the solar water heater. And with that you don't have to pay the electric cost at all.
In this way you will save recurring money and in 2 to 3 years you will be break even. Usually Solar water heater warranty is around 10 years so after 3 years you will enjoy the free hot water. And this will only work for the people who have their individual house, for the apartments you have to have the geyser and you don't have any options.
And if you are in Bangalore where you have to get the geyser for atleast 6 months in a year, it's a great way to save some future money. And since it's cheap, it should be the first step in adopting the solar ecosystem. Also it doesn't require a lot of your space so that it's a win win situation for consumers.