SEAI Energy-by-Fuel.xlsx extracted values (Primary Energy Supply (incl non-energy), ktoe)
Years: 1990-1995
Fuel,1990,1991,1992,1993,1994,1995
Bituminous Coal,2066.702964128766,1918.200433662425,1721.419307674727,1719.154308234513,1647.673676778342,1708.302393305752
Lignite,17.999350011738,33.131112000000,25.558286400000,20.829473280000,20.351968800000,21.298572000000
Kerosene,121.394000000000,124.560800000000,131.950000000000,145.672800000000,163.618000000000,220.620400000000
Jet Kerosene,354.962100000000,377.081400000000,320.203200000000,453.972300000000,385.507800000000,354.962100000000
Milled Peat,763.756000006800,788.640000000000,803.706000000000,743.814000000000,751.440000000000,715.356000000000
Sod Peat,617.409999986500,472.317000000000,511.755000000000,465.744000000000,472.317000000000,491.097000000000
Biomass,105.474347950702,100.657089963785,88.874558135091,89.758287952613,90.800779205300,88.981587972860
Biogas,2.269036017961,2.842266169867,2.794496990542,3.630457628738,2.483997324926,2.842266169867

Conversion used: 1 ktoe = 11.63 GWh (from SEAI toe->MWh factor).
Rounded GWh (nearest whole number, chart-style):
Combination,1990,1991,1992,1993,1994,1995
Bituminous Coal + Lignite,24245,22694,20317,20236,19399,20115
Jet Kerosene + Kerosene,5540,5834,5259,6974,6386,6694
Milled Peat + Sod Peat,16063,14665,15299,14067,14232,14031
Biomass + Biogas,1253,1204,1066,1086,1085,1068

Exact pair sums and GWh before rounding:
Combination,Year,Sum_ktoe,GWh_exact,Rounded_GWh
Bituminous Coal + Lignite,1990,2084.702314140504,24245.087913454066,24245
Bituminous Coal + Lignite,1991,1951.331545662425,22693.985876053997,22694
Bituminous Coal + Lignite,1992,1746.977594074727,20317.349419089078,20317
Bituminous Coal + Lignite,1993,1739.983781514513,20236.011379013791,20236
Bituminous Coal + Lignite,1994,1668.025645578342,19399.138258076116,19399
Bituminous Coal + Lignite,1995,1729.600965305752,20115.259226505896,20115
Jet Kerosene + Kerosene,1990,476.356100000000,5540.021443000001,5540
Jet Kerosene + Kerosene,1991,501.642200000000,5834.098786000000,5834
Jet Kerosene + Kerosene,1992,452.153200000000,5258.541716000000,5259
Jet Kerosene + Kerosene,1993,599.645100000000,6973.872513000000,6974
Jet Kerosene + Kerosene,1994,549.125800000000,6386.333054000001,6386
Jet Kerosene + Kerosene,1995,575.582500000000,6694.024475000000,6694
Milled Peat + Sod Peat,1990,1381.165999993300,16062.960579922079,16063
Milled Peat + Sod Peat,1991,1260.957000000000,14664.929909999999,14665
Milled Peat + Sod Peat,1992,1315.461000000000,15298.811430000002,15299
Milled Peat + Sod Peat,1993,1209.558000000000,14067.159540000001,14067
Milled Peat + Sod Peat,1994,1223.757000000000,14232.293910000002,14232
Milled Peat + Sod Peat,1995,1206.453000000000,14031.048390000000,14031
Biomass + Biogas,1990,107.743383968663,1253.055555555555,1253
Biomass + Biogas,1991,103.499356133653,1203.697511834380,1204
Biomass + Biogas,1992,91.669055125633,1066.111111111111,1066
Biomass + Biogas,1993,93.388745581351,1086.111111111111,1086
Biomass + Biogas,1994,93.284776530226,1084.901951046529,1085
Biomass + Biogas,1995,91.823854142727,1067.911423679913,1068