
- PENNY ELLIS -
THORALBY
THROUGH TIME
Thoralby Mill -
Hydro-electricity Station
In 1919, the Middlesbrough Cooperative Society purchased the mill building and replaced the waterwheel with a water turbine that provided electric light and power. The turbine was powered by water from the mill race. The Cooperative Society converted the mill into a milk processing plant that could pasteurise up to 500 gallons of milk a day and turn it into cheese. The machinery used to pasteurise and cool the milk was 'electrically driven'. The mill had eclectic power and light. However, the operation must have been uneconomic because Middlesbrough Cooperative Society’s ownership of Thoralby dairy was short-lived: in April 1922 the Society offered the mill building for sale, as shown in this advert.

Thoralby Mill -
Electricity Generating Station
Alfred Rowntree, who owned Coverham Dairy, purchased the mill building in 1923. He continued operating the dairy and set up a piggery alongside the mill building, feeding whey from the cheese-making process to the pigs. Rowntree used the turbine to generate electricity that powered the dairy machinery and supplied lighting to Thoralby and Newbiggin. The water to power the turbine entered the mill via the launder that had previously fed the waterwheel. The dairy had ceased operation by 1948 when electricity generation was taken over by the national grid.
Darlington & Stockton, 1923
THORALBY MILL, which a few weeks ago was purchased by Mr. A. Rowntree, of Coverham, is already in the hands of the builders. The old wheel which has done duty for so many years, has been taken out, and also the millstones, the latter going to their old owner, Mr. Sayer, who hopes to use them again in a new home. The water power is to be used for an up to-to-date electric plant. It is hoped that both Thoralby and Newbiggin will be able to have electric light by autumn next. The dairy, it is hoped, will be ready to start in the early spring. Mr. Rowntree is putting down an efficient sewage plant, so that the Beck may be kept pure.
Below is a photograph of Thoralby Mill c.1924 when Alfred Rowntree & Son, operated the Dairy and also the provision of electric light to a number of households in Thoralby and Newbiggin. The area in yellow shows the electric pylon?.
Photograph courtesy of Charles Rowntree.

Alfred Rowntree used the turbine to generate electricity that powered the dairy machinery and supplied lighting to Thoralby and Newbiggin. The water to power the turbine entered the mill via the launder that had previously fed the waterwheel.
The photograph opposite is inside Thoralby Mill, showing the electric light and Gilkes turbines, from Kendal.
Photograph courtesy of Charles Rowntree.

The company installing the electric light to the householders of Thoralby and Newbiggin was an Askrigg Millwright, joiner and general builder, Mr. William Handley Burton.
Askrigg Mill Electricity Account Book 1923, courtesy of Andrew Craske.
I have copied all the pages referring to Thoralby and pasted them together in date order, see below: