Bookmark and Share

Rooftop Solar Update for Major Markets – Q1 2015

5 Comment

Will Rooftop Solar be the New Global Solar Mantra

Rooftop Solar are gaining popularity because they do not require huge amount of land as is the case with large solar farms and also reduce transmission costs. USA installed 437 MW of rooftop solar in Q1 2015, with California topping the list installing more than 50% alone. This was the highest quarterly installation that USA has ever reached. The country houses some of the biggest solar installers like SolarCity (SCTY), Vivint Solar (VSLR). SolarCity is aiming to install more than 1 GW of rooftop solar in 2015. With the ITC expiring in December 2016, installers are making the most of their time now. After the expiration of the ITC credit, the residential credit comes down from 30% to 0. The commercial and utility systems will still collect the 10% tax credit and accelerated depreciation.

Rooftop Project

Other states to achieve record installations in USA are New York, New Jersey, Hawaii, Arizona. The cost of system installation has also come down to ~$3/ watt. The current cost of installation of solar power are as low as $2.86 per watt for SolarCity and $2.96 per watt for Vivint Solar. These prices are expected to further fall in the future.

Rooftop Solar is fast gaining traction around the world. India has increased its target of solar installation to 100 GW by 2022, 40% of which is aimed as rooftop solar. China has installed 5.3 GW of rooftop solar till date and has plans to install 17.8 GW of solar till 2015. Rooftop solar makes energy more democratic and also ultimately reduces transmission costs. Given the land crisis in the emerging markets, it makes more sense to deploy rooftop solar. India should take a hint from its western counterparts to install more and more rooftop solar as it will reduce cost of both transmission and land. India’s reduced subsidy on rooftop installation by 50% coming down to 15% currently. This is not a good sign, as a lot of the customers will be reluctant to fund the high initial costs of solar installations. A better way would have been providing incentives in the form of stamp duty or property tax exemptions.

Read about Solar installers in India.


Sneha Shah

I am Sneha, the Editor-in-chief for the Blog. We would be glad to receive suggestions, inputs & comments on GWI from you guys to keep it going! You can contact me for consultancy/trade inquires by writing an email to

5 Responses so far | Have Your Say!

  1. pramod ranjan arora

    India has very big potential for rooftop solar. Unfortunately, the progress in this sector is very much slow, since ignored. This sector is especially important for India as this sector would be able to provide millions job opportunities through out the country.

  2. sagar vengurlekar

    i want solar lighting system for my house. so kindly suggest some solution for the same.

  3. ved varat Sharma

    Recently My house 3rd Floor is under completion. I wish to install solar Air Conditioner 48V/With AC 220 V/48V DC adoptor 3 Nos. & one Solar Split Air conditioner. The capacity of each unit 1.5T +one Solar Heater of 200Ltrs
    Kindly advice the best alternative with Manufacturer details.
    Ved Varat Sharma

  4. Sneha Shah

    Hello there,

    Please post your queries on my forum, to get quicker responses

  5. Sneha Shah

    What is your requirement Sagar?

    Please be specific about the number of lights with power consumption. Thanks