[R] ggplot incorrect legend

[jcrosbie]

How do I create a legend with ggplot?

I think should be getting the FuelTypeNum in the legend. 

Plot:
http://r.789695.n4.nabble.com/file/n4632471/Rplot.jpeg 

My code is:
ggplot(data=tempTable, aes(x=Bands8, y=SubPercent, fill=FuelTypeNum)) +
  geom_bar(position="stack", stat="identity") +
  scale_colour_hue('my legend', breaks = levels(tempTable$FuelTypeNum),
labels=c('Bio', 'Coal', 'Gas', 'Hydro','Other'))


tempTable:
   FuelTypeNum Bands8 AvailableMW AvailableMWNewFormat   SubPercent
1            1    PB0      185351              185.351 4.355864e-03
2            2    PB0    25994753            25994.753 6.108928e-01
3            4    PB0     1369528             1369.528 3.218476e-02
4            5    PB0    14522521            14522.521 3.412883e-01
5           10    PB0      479915              479.915 1.127830e-02
6            2    PB1       48229               48.229 5.736753e-02
7            5    PB1      792473              792.473 9.426325e-01
8            2    PB2    11792402            11792.402 7.914544e-01
9            4    PB2       27187               27.187 1.824672e-03
10           5    PB2     2770769             2770.769 1.859619e-01
11          10    PB2      309303              309.303 2.075906e-02
12           1    PB3          48                0.048 3.983475e-05
13           2    PB3      136844              136.844 1.135656e-01
14           4    PB3       65079               65.079 5.400845e-02
15           5    PB3      793226              793.226 6.582909e-01
16          10    PB3      209781              209.781 1.740953e-01
17           1    PB4       22113               22.113 4.340998e-02
18           2    PB4       57843               57.843 1.135515e-01
19           4    PB4       20315               20.315 3.988033e-02
20           5    PB4      382714              382.714 7.513050e-01
21          10    PB4       26414               26.414 5.185326e-02
22           1    PB5       39173               39.173 3.232381e-02
23           2    PB5      174913              174.913 1.443304e-01
24           4    PB5      103542              103.542 8.543824e-02
25           5    PB5      874764              874.764 7.218162e-01
26          10    PB5       19501               19.501 1.609135e-02
27           1    PB6           4                0.004 4.550429e-06
28           2    PB6      175038              175.038 1.991245e-01
29           4    PB6       91547               91.547 1.041445e-01
30           5    PB6      610371              610.371 6.943625e-01
31          10    PB6        2078                2.078 2.363948e-03
32           1    PB7       36103               36.103 1.109041e-02
33           2    PB7      210681              210.681 6.471866e-02
34           4    PB7      739013              739.013 2.270159e-01
35           5    PB7     2239824             2239.824 6.880469e-01

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