ITU‐T's Technical Reports and Specifications 721 After sharing the data, new businesses have arisen, which were similar movements like that many weather news businesses started after National Oceanic and Atmospheric Administration opened their data. As the recent case, many new businesses have started up with data of \"Health Data Initiative\" shared58. One of the examples to utilize the open data of energy usage is \"Opower\"59. They have used energy consumption data, which are collecting by smart meters, and made reports how to conserve the energy for companies and households. Their analyzed data are almost free. Therefore, their running costs are dramatically low compared with before. They have expanded their business to seven countries and had 16 million customers in 2013. 7.2 Case study 2. Data.gov.uk \"Data.gov.uk\" is a portal site that the government has shared public data. However, their purpose includes enhancing the people's understanding how government works and how policies are made. Data.gov.uk is placed as a key part of the government's work on \"transparency\" between the government and people. Open data team in the Cabinet Office has led Data.gov.uk. Figure 4 shows a capture of top page, Data.gov.uk. Figure 4 – Capture of postal site, Data.gov.uk The government is releasing public data to help people understand how government works and how policies are made. Some of this data is already available, but Data.gov.uk brings it together in one searchable website. 60 . Data.gov.uk provides datasets available from all central government departments and a number of other public sector bodies and local authorities. From the portal side of data.gov.uk, users can access the raw data driving government forward like Data.gov provided by the United States. Examples of general public information are tax credits or tax your car. ____________________ 58 Health Data Initiative, HelthData.gov, URL: http://healthdata.gov/ (2014). 59 Opower Official Website, URL: http://opower.com/ (2014). 60 Data.gov.uk, URL: http://data.gov.uk/about (2014).