For each option the optimum financial (payback) and energy (CO2) options were
highlighted by			and		respectively.
These optimums are then inserted in a chooser sheet for comparison & selection
j)	electrical exporting (grid), low tariff off
		payback (years)	npv 15 (k£)	CO2 saved (Tonnes)	Utility saved (k£pa)	Capital (k£)	Capital per CO2 (k£/tonne)
	338	15.8	-349	536	76	922	1.72
	450	12.7	-224	653	99	966	1.48
	563	10.9	-111	749	120	1010	1.35
	619	10.4	-72	788	129	1032	1.31
	675	10.1	-44	820	137	1054	1.29
	731	10	-29	851	144	1076	1.26
	788	10	-30	882	149	1098	1.24
	844	10.1	-43	910	152	1119	1.23
	1125	12.1	-244	1024	157	1224	1.20
	1688	20.8	-761	1148	152	1425	1.24
	2250	51.2	-1307	1139	143	1613	1.42
k)	electrical exporting (dist network), low tariff off
		payback (years)	npv 15 (k£)	CO2 saved (Tonnes)	Utility saved (k£pa)	Capital (k£)	Capital per CO2 (k£/tonne)
	338	15.6	-349	536	76	922	1.72
	450	12.6	-224	653	99	966	1.48
	563	10.9	-109	749	121	1010	1.35
	619	10.3	-60	788	131	1032	1.31
	675	9.9	-18	820	140	1054	1.29
	731	9.6	16	851	149	1076	1.26
	788	9.3	43	882	157	1098	1.24
	844	9.2	63	910	164	1119	1.23
	1125	9	94	1024	192	1224	1.20
	1688	9.2	86	1148	239	1425	1.24
	2250	9.4	47	1139	283	1613	1.42
l)	electrical exporting (private wire), low tariff off
	engine (kWe)	payback (years)	npv 15 (k£)	CO2 saved (Tonnes)	Utility saved (k£pa)	Capital (k£)	Capital per CO2 (k£/tonne)
	338	16.3	-389	536	76	962	1.79
	450	13.2	-264	653	99	1006	1.54
	563	11.3	-144	749	121	1050	1.40
	619	10.6	-87	788	132	1072	1.36
	675	10	-33	820	143	1094	1.33
	731	9.5	21	851	153	1115	1.31
	788	9.1	77	882	164	1137	1.29
	844	8.7	130	910	175	1159	1.27
	1125	7.4	392	1024	226	1264	1.23
	1688	6	893	1148	327	1465	1.28
	2250	5.3	1363	1139	422	1653	1.45
m)	electrical exporting (private wire), low tariff on
		payback (years)	npv 15 (k£)	CO2 saved (Tonnes)	Utility saved (k£pa)	Capital (k£)	Capital per CO2 (k£/tonne)
	338	17.7	-433	672	78	962	1.43
	450	14.4	-328	800	101	1006	1.26
	563	12.2	-216	900	123	1050	1.17
	619	11.4	-160	939	134	1072	1.14
	675	10.8	-106	971	145	1094	1.13
	731	10.2	-52	1001	155	1115	1.11
	788	9.7	3	1033	166	1137	1.10
	844	9.3	56	1061	177	1159	1.09
	1125	7.8	319	1174	228	1264	1.08
	1688	6.2	820	1299	328	1465	1.13
	2250	5.4	1318	1238	424	1653	1.34
n)	electrical exporting (private wire), low tariff on, 50% grant
	engine (kWe)	payback (years)	npv 15 (k£)	CO2 saved (Tonnes)	Utility saved (k£pa)	Capital (k£)	Capital per CO2 (k£/tonne)
	338	8.8	48	672	78	481	0.72
	450	7.2	175	800	101	503	0.63
	563	6.1	309	900	123	525	0.58
	619	5.7	376	939	134	536	0.57
	675	5.4	440	971	145	547	0.56
	731	5.1	505	1001	155	558	0.56
	788	4.8	572	1033	166	569	0.55
	844	4.6	636	1061	177	580	0.55
	1125	3.9	951	1174	228	632	0.54
	1688	3.1	1552	1299	328	733	0.56
	2250	2.7	2144	1238	424	827	0.67