Departmental Databases Greg Clark To ask the Secretary of State for Energy and Climate Change what databases are (a) held and (b) maintained by his Department. Mr. Mike O'Brien It is not possible to answer this question without incurring disproportionate costs. DECC owns and maintains a wide range of databases reflecting its diverse policy and regulatory functions. Some of these databases contain large numbers of individual datasets. A detailed list could be provided only at disproportionate cost to the Department.