Co. Offaly

Site
No.		 River OS
Map		 Nat. Grid
Reference		 Catch-
ment
Area
km2		 Rainfall
mm		 Prov.
Mean
Flow
m3/s		 Head
m		 Potent.
Inst.
Cap.
kW		 Potent.
Annual
Energy
MWh		 Site
Rating
6 Brosna 8-6 N256 325 329 925 5.17 2.6 67 268 Operating
7 Brosna 8-6 N253 324 330 925 5.19 2.5 89 356 Operating
15 Silver 9-14 N359 289 30 900 0.459 4.0 12 53 M
20 Brosna 14-14 N073 221 1215 930 16.00 3.5 446 2100 Operating
22 Silver 16-4 N314 278 37 900 0.566 2.5 11 44 Operating
25 Tullamore 17-9 N336 249 112 880 1.675 2.0 26 107 M
35 Un-named 29-4 N015 139 18 890 0.272 8.0 17 78 M
41 Silver 32-13 N229 093 13.6 1350 0.316 4.0 10 45 M
45A Camcor 35-10 N061 045 163 1042 2.887 2.0 45 206 M
45B Camcor 35-10 N061 045 163 1042 2.887 3.3 81 367 F
53 Silver 37-1 N228 084 13 1370 0.3 5.0 11 52 M*
61 Little Brosna 42-12 S105 913 192.5 980 3.2 2.5 68 298 M
64B Little Brosna 42-16 S112 905 31 900 0.474 5.5 20 92 M
43 Little Brosna 35-1 N032 080 495 958 8.062 1.5 57 345 M