42.57 GW.
Instantaneous UK Electricity Generation:
at 06:05am Wed 8 Feb 2012 (UCT*)
* add 1 hour for British Summer Time

Fuel Type	Power	Percentage	Conversion	Percent. * Conv.
CCGT	8.34 GW	19.6%	360 g/kwh	71
OCGT	0.00 GW	0.0%	479 g/kwh	0
OIL	0.00 GW	0.0%	610 g/kwh	0
COAL	22.97 GW	54.0%	910 g/kwh	491
NUCLEAR	7.95 GW	18.7%	16 g/kwh	3
WIND	2.37 GW	5.6%	0 g/kwh	0
PS	0.00 GW	0.0%	0 g/kwh	0
NPSHYD	0.38 GW	0.9%	0 g/kwh	0
OTHER	0.52 GW	1.2%	610 g/kwh	7
INTFR	0.00 GW	0.0%	83 g/kwh	0
INTIRL	0.04 GW	0.1%	699 g/kwh	1
UK Carbon Intensity:				573 g/kWh