Eden Geothermal Community Fund update – Trethurgy village playing field

Last year we supported nine community groups from Treverbyn, St Blaise, Carlyon and Luxulyan parishes with Eden Geothermal Community Fund grants to benefit projects in the local area. One of these groups was the Village Hall Committee from Trethurgy, a village right on our doorstep. They applied for just over £3,700 to provide new facilities […]

Phase 1 of injection testing now completed

We’ve now completed our first phase of injection testing and will be pausing to carry out further wireline logging. We’re planning some further injection and production tests at a later date and will post further information here and on social media channels when details are confirmed. There’s more information about well testing at Well testing […]

Well testing restarting

We are restarting geothermal well testing operations this morning. This follows a review of our injection testing programme after the seismicity that was felt and heard last Wednesday. We know that some people want to better understand what caused the felt seismicity last Wednesday. Microseismicity is linked to well testing during the early stages of […]

Felt seismicity – update

UPDATE AT 12:55 ON 1OTH MARCH 2022 The seismic event which occurred at approximately 9.20pm on 9th March was induced by injection testing at Eden Geothermal.  These tests have been ongoing since late January and have involved injecting fresh water into the natural fractures near the bottom of the well.  Injection testing induces low level […]

Reports of felt seismicity

We are aware that a seismic event was felt and heard in the vicinity of the Eden Geothermal site shortly after 9.20pm this evening. An investigation and analysis of seismic monitoring data have confirmed that the event was linked to testing operations at Eden Geothermal. No damage has been reported, and the event was within […]

Well testing at Eden Geothermal

We’re currently in a phase of testing our first geothermal well. Well tests provide us with essential information about the temperature and permeability of the rock in our target zone, and how water moves through the hot granite deep underground. The results of our tests will enable us to characterise the geothermal resource, and to […]

Geothermal heat main installation begins

Work has started on the installation of the new heat main that will supply Eden Project’s Biomes, greenhouses and other buildings with geothermal heat. The heat main consists of two 150mm (6”) steel pipes – a flow and return – each encapsulated in a thick layer of insulation to a total diameter of 280mm. They […]

We’re drilling our final 8 ½” section

Having successfully run and cemented casing in the 12¼” section of EG-1, we’re now into the final 8 ½” open hole section. The bits are grinding the granite to powder – as this cuttings sample from 4050m shows. Current depth is 4324m MD and we expect to intersect Great Crosscourse fault soon. The Eden Project […]