Akranes-Borgarnes Geothermal Water Pumping Station

From http://www.geothermie.de/egec-geothernet/ghc/19-4art3.pdf:

The springs at Deildartunga supply 180 L/s of water at
96oC and the wells at Baer can produce about 20 L/s in artesian
flow. Thus, the combined supply capacity is 200 L/s.

Currently, however, the system is using only 170 L/s at peak

load, which are taken from the Deildartunga hot springs. The
wells at Baer are only used if the supply from Deildartunga is
interrupted for some reason and flows cannot be maintained
by the storage tanks.

The collection system at the springs is very simple. An
arrangement of low walls guides the boiling water into the
collection pipes. These conduct the fluid to a nearby pumping
station that pumps the water up to a storage tank at the

highest point in the pipeline at Kroppsmuli a few km away.

The system also includes two storage tanks to maintain supplies
to Akranes and Borgarnes if breaks in the transmission
pipeline occur. The tank at Borgarnes has a capacity of 2,500
m3 and that at Akranes 2,000 m3. These give the
nmaanicnete c-rews several hours in which to repair breaks. Pumping
stations are at six different places in the system.

The distribution system is a single pipeline system, made
of buried steel pipes, pre-insulated by polyurethane. The total

pipe length of the distribution system is 107 km; thereof,
57 km in Akranes, 23 km in Borgarnes and 27 km in the rural
areas. The water supplied is used directly by the users in their
is disposed of through the local wastewater system.

radiator systems and as domestic hot water. The return water

is disposed of through the local wastewater system.