Region

Geology

Extrapolated Temperature

Actual registered Temperature

Variations

Percentage %

Ngawha (1)

Adjacent to igneous rocks

188.0

225.0

37.0

83.57%

Ngawha (2)

sedimentary

190.9

230.0

39.1

83.02%

Ngawha (3)

sedimentary

193.9

230.0

36.1

84.30%

Broadlands (2)

volcanic

270.8

260.0

−10.8

104.14%

Broadlands (3)

volcanic

272.0

281.0

9.0

96.80%

Broadlands (9)

volcanic

279.6

294.0

14.4

95.11%

Broadlands (11)

volcanic

265.1

260.0

-5.1

101.94%

Wairakei

volc/magm

232.6

240.0

7.4

96.93%

Rotokuaua

volcanic

213.7

220.0

6.3

97.13%

Assammaqieh

volcanic

135.5

±20 C 115 - 155