Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, what impact a presumption against issuing any further Hydraulic Fracturing Consents on the basis of potential seismic events may have on (a) sourcing geothermal energy and (b) exploration for lithium and other minerals.

The Infrastructure Act 2015 set out provisions for ‘associated hydraulic fracturing’ where it is defined as hydraulic fracturing of shale or strata encased in shale for the purposes of searching for or extracting petroleum or natural gas. The presumption against issuing any further Hydraulic Fracturing Consents on the basis of potential seismic events should therefore have no impact on sourcing geothermal energy or the exploration for lithium and other minerals.

The control and mitigation of induced seismicity for deep geothermal projects is based on the British Standard BS 6472-2 (BSI, 2008), which defines limits for acceptable levels of ground vibrations caused by blasting and quarrying, and other local planning authority guidelines for blasting, quarrying, and mining. These thresholds are defined in terms of measured ground velocity rather than seismicity.