Purchases through the government's G-Cloud programme deliver substantial savings to buyers, according to director Tony Singleton. Some organisations have saved 50 percent on previous costs for IT services, according to Singleton.

The Government Digital Service (GDS) is responsible for G-Cloud and the Digital Services Framework, which are currently being combined to form the 'Digital Marketplace'. The GDS is shortly due to publish a report into savings made through the G-Cloud framework, with specific examples of some buyers saving more than half their previous costs through their purchases.

Writing in a blog post, Singleton said: "G-Cloud is about more than sales; it is about transforming the way the public sector buys cloud-based services, and it is one of the frameworks supporting a wider business IT transformation.

"The Cloud First policy sets out that cloud solutions should be looked at first by public sector buyers and the current CloudStore should be the route for buying those services."

However, recently published research of over 800 civil servants found that almost nine out of 10 of those surveyed said they needed more training to understand the benefits of the cloud. The surveys, which were conducted by Eduserv, also found that only 25 percent thought that the benefits were well-understood by their organisation.

As a result, Singleton said, GDS needs to step up efforts to ensure the public sector as a whole understand the benefits of cloud technologies and G-Cloud specifically, and how to buy from GDS..

As part of these efforts, the G-Cloud team will develop an online resource including case studies, short videos and 'myth-busting' articles and appoint supplier and buyer community 'champions' from those who have already successfully adopted cloud based strategies.

Singleton will also personally provide a monthly blog post with updates from the programme to ensure the team regularly communicates progress, he added.

The latest sales data for G-Cloud shows that a total of £124 million has been spent through the programme so far, of which £32 million was spent in the most recently recorded month February 2014.

Some 78 percent of sales by value so far have gone through central government, with 22 percent being spent by the wider public sector. SMEs have received 59 percent of sales by value.