Agecroft Power Station
In March 1993 the 360MW coal fired power station known as Agecroft Power Station was decommissioned.
The current site owner has commissioned me to explore the possibility of returning the Agecroft Power Station back to its original purpose of power generation using sustainable feedstocks and renewable technologies, then offering the site for sale.
There is one main criterion – the current tenants on the site must not be inconvenienced at all.
Here are images of the current site, surrounding area and site plan:
The ‘what’, ‘where’, ‘when’, and ‘potential costs/revenue’.
What technology should be utilised on the site?
Initially, a single biomass/CHP 1MW fed by wood chip was considered.
However, after some discussion with other parties, who have the technical expertise, knowledge and experience of installing both biomass/CHP and Gas CHP units, and taking into account all the other variables, I decided that the better option would be a scalable solution of smaller biomass/CHP units, using either pellets or rapeseed as a feedstock.
So far I have an outline quotation for a modular solution of 20 containerised pellet fired Biomass/CHP units and I am awaiting the quotation for the containerised rapeseed fired units.
There is also the option to have on site a pellet mill, which I have yet to explore and obtain costings for.
Where will the units, feedstock stores and offices be located?
The existing buildings on the site lend themselves to the internal housing of the biomass/CHP units, feedstock storage, plant offices and potentially a pellet mill.
Although, building 1 does require some remedial works to make it air/water tight, it could be better suited for the feedstock storage. The building is a steel framed, with Accrington brick skins and concrete floors.
Building 2 is water tight and dry and has in situ a 13 tonne overhead crane which will be utilised. At present building 2 is earmarked to house the biomass/CHP units and plant offices.
What processes need to be completed and when will the plant be operational?
The current substation in the basement of building 1 needs to be re-sited and a quotation for this has yet to be obtained.
A decision needs to be made on the technology to be employed – pellet or rapeseed fired.
Remedial works to building 1.
A decision on whether to incorporate a pellet plant and costings obtained, should the pellet fired technology be the preferred option.
There are the relevant impact assessments and reports to be undertaken.
Planning Permission: Indications are that obtaining PP will not present any issues.
Full site survey and final quotation by the preferred technology supplier and modular system design, including feedstock storage.
Full site survey, including design and full quotation by pellet mill supplier and installer, should that option exercised.
Target date for operation May 2016.
Total provisional costings to date are circa £3,500,000 to £4,000,000, with an ROI of circa 4-6 years.
Total gross revenue over 20 years of £20,000,000+ based on 20 modulated units generating a total 8,250,000 kWh heat and 3,3oo,000 kWh of electricity per annum.
There are options to increase the revenue:
A. Increase the number of modulated units, installing a pellet mill thereby reducing feedstock costs.
B. Putting in place HPA’s and PPA’s and/or ‘sleeve’ agreements.
If you have feedback or input, please do not hesitate to contact me Philip Smith-Lawrence firstname.lastname@example.org
Header Image Courtesy of Entrade Energiesysteme AG and TWPower Ltd.
Biomass/CHP unit in the image is: