Revenue related to consumer use of cloud-based backup/storage sites is expected to grow from almost $75m in 2009 to more than $372m in 2015, at a CAGR of 27.89%, according to a new study by ABI Research.

Apart from the price/cost issue, the major reason for considering a cloud-based application was the concept that they could access their valued content from any internet-connected computer, the firm said.

According to the study, just 11.6% of the US consumer market for online backup/storage services was paid for in 2009. Most cloud-based backup and storage sites provide consumer services either entirely free or free at the entry level, but several do provide a more robust offering on a paid basis.

ABI Research said that its forecast model indicates that the paid portion of the sector will grow along with increasing use of netbooks to replace (or supplement) consumer laptops and other mobile internet devices.

Other factors supporting growth in the sector include, growing public awareness of cloud computing applications, as well as disasters that result in utility service disruptions, ABI Research said.

In addition, a new study found that more than 143 million consumers took advantage of the free or low-cost applications that reside in the internet cloud in 2009, a number that is forecast to grow to nearly 160.6 million by the end of 2015.

Larry Fisher, practice director at ABI Research, said: “The consumer value proposition for many Cloud Computing applications is simple; they’re free. Most of the 1000+ US consumers responding to a 2010 ABI Research survey said they were hesitant to pay anything for use of a cloud-based service site.

“Many companies will provide free access to their web-based applications to consumers in the hope that they’ll be sufficiently impressed to bring their enthusiasm for these applications to the businesses for which they work. Commercial pricing is then based on the number of users and the amount of storage used.”