The phrase "a number of solar" is not correct and usable in written English as it is incomplete.
It can be used when referring to multiple solar-related items or concepts, but it needs to be followed by a noun to be grammatically correct.
Example: "A number of solar panels were installed on the roof to harness renewable energy."
Alternatives: "several solar" or "many solar".
There are a number of solar chargers for electronic gadgets, but having a battery makes charging much more convenient.
Rugby Run is the first of a number of solar projects through which Adani plans to provide up to 1500MW in Australia within the next five years.
Wyke Farms has also installed a number of solar arrays to help to manage peak daytime electrical loads that are not covered by the biogas plant.
The city is home to a number of solar businesses: a new 50-megawatt thermal-solar plant owned by the Spanish energy giant Iberdrola created hundreds of jobs.
A number of solar companies now offer batteries to accompany their solar panels (see "Solar Power, and Somewhere to Store It").
Branson, who has worked to develop solar power in Caribbean countries and is planning to invest in a number of solar projects in Africa, said: "Energy poverty and economic poverty are two sides of the same coin.
A number of solar-powered aircraft exist already, such NASA's Helios, the Solar Riser glider or the Sunseeker which flew across the US in 1990 using a mix of solar power and gliding.
Even with tax credits meant to stimulate the solar industry a number of big solar farm projects announced last year are in danger as financing dries up.
It joins a number of other solar manufacturers, including famously the U.S. government-backed Solyndra, that have failed during difficult times for the solar industry.
The discovery reflects a number of extreme solar system surveys that are using telescopes with both big mirrors and large fields of view necessary to find faint solar system objects that could be almost anywhere on the sky.
The nation is also building a number of landmark solar thermal projects, which may pave the way for broader deployment in Latin America.
