Earth Notes: Historical Stats to 2008/07

This page shows historical stats, when available.

Analysis for 2008/07

Count of samples when each input was active/on.

Hour (UTC)	Battery Voltage High	Input1	LVD Output On	Wind Power	Input4
00
01
02
03
04
05
06			20 (13%)	1 (0%)
07			73 (48%)
08			95 (63%)
09	1 (0%)		110 (73%)	5 (3%)
10	5 (3%)		131 (87%)	22 (14%)
11	48 (35%)		106 (78%)	17 (12%)
12	62 (51%)		106 (88%)	10 (8%)
13	50 (41%)		104 (86%)	13 (10%)
14	55 (45%)		95 (79%)	8 (6%)
15	12 (10%)		109 (90%)	1 (0%)
16			110 (91%)	4 (3%)
17			90 (75%)
18			74 (61%)
19			12 (10%)	2 (1%)
20				2 (1%)
21				2 (1%)
22
23				1 (0%)
Total	233 (7.22481%)	(0%)	1235 (38.2946%)	88 (2.72868%)	(0%)
Gap h max/mean	44/14.4056	/	13.8333/5.66667	35.7333/3.89565	/

Number of samples taken: 3225

Analysis for 2008/06

Count of samples when each input was active/on.

Hour (UTC)	Battery Voltage High	Input1	LVD Output On	Wind Power	Input4
00			30 (3%)	20 (2%)
01			30 (3%)	15 (1%)
02			30 (3%)	12 (1%)
03			30 (3%)	11 (1%)
04			30 (3%)	13 (1%)
05	6 (0%)	10 (1%)	40 (4%)	16 (1%)
06	35 (3%)	228 (25%)	299 (33%)	36 (4%)
07	67 (7%)	504 (56%)	674 (74%)	72 (8%)
08	75 (8%)	575 (63%)	738 (82%)	89 (9%)
09	62 (6%)	629 (70%)	793 (88%)	89 (9%)
10	135 (15%)	637 (71%)	781 (87%)	120 (13%)
11	313 (34%)	671 (74%)	839 (93%)	120 (13%)
12	370 (41%)	650 (73%)	829 (93%)	114 (12%)
13	355 (40%)	634 (71%)	807 (91%)	110 (12%)
14	312 (34%)	627 (69%)	806 (89%)	120 (13%)
15	81 (9%)	565 (63%)	747 (83%)	123 (13%)
16	104 (11%)	487 (54%)	692 (76%)	109 (12%)
17	99 (11%)	433 (48%)	590 (65%)	104 (11%)
18	112 (12%)	279 (31%)	413 (46%)	77 (8%)
19	120 (13%)	42 (4%)	131 (15%)	44 (5%)
20	65 (7%)		44 (5%)	36 (4%)
21	30 (3%)		30 (3%)	26 (2%)
22	30 (3%)		30 (3%)	26 (2%)
23	28 (3%)		30 (3%)	26 (2%)
Total	2399 (11.2197%)	6971 (32.6022%)	9463 (44.2569%)	1528 (7.1462%)	(0%)
Gap h max/mean	37.8333/10.1011	17.7/9.27941	17.7/9.52456	24.0667/2.35529	/

Number of samples taken: 21382

Analysis for 2008/05

Count of samples when each input was active/on.

Hour (UTC)	Battery Voltage High	Input1	LVD Output On	Wind Power	Input4
00	30 (3%)			20 (2%)
01	30 (3%)			14 (1%)
02	54 (5%)			21 (2%)
03	60 (6%)			12 (1%)
04	60 (6%)			20 (2%)
05	61 (6%)			25 (2%)
06	82 (8%)	54 (5%)	54 (5%)	28 (3%)
07	54 (5%)	140 (15%)	135 (14%)	34 (3%)
08	36 (3%)	251 (26%)	239 (25%)	51 (5%)
09	17 (1%)	354 (38%)	342 (36%)	50 (5%)
10	51 (5%)	587 (63%)	583 (62%)	53 (5%)
11	326 (35%)	646 (71%)	640 (70%)	73 (8%)
12	308 (34%)	629 (69%)	623 (69%)	62 (6%)
13	290 (32%)	676 (75%)	666 (74%)	68 (7%)
14	278 (30%)	603 (67%)	592 (65%)	67 (7%)
15	78 (8%)	553 (61%)	546 (60%)	72 (8%)
16	8 (0%)	251 (27%)	241 (26%)	57 (6%)
17	15 (1%)	88 (9%)	85 (9%)	48 (5%)
18	163 (18%)	12 (1%)	10 (1%)	47 (5%)
19	106 (11%)	2 (0%)	2 (0%)	32 (3%)
20	88 (9%)			31 (3%)
21	39 (4%)	1 (0%)	1 (0%)	36 (3%)
22	35 (3%)			44 (4%)
23	30 (3%)			16 (1%)
Total	2299 (10.4372%)	4847 (22.0048%)	4759 (21.6053%)	981 (4.45363%)	(0%)
Gap h max/mean	47.9/7.41984	19.4667/7.17151	19.4667/7.43167	65.4333/4.29172	/

Number of samples taken: 22027

Analysis for 2008/04

Count of samples when each input was active/on.

Hour (UTC)	Battery Voltage High	Input1	LVD Output On	Wind Power	Input4
00	30 (4%)			20 (2%)
01	30 (4%)			17 (2%)
02	30 (4%)			8 (1%)
03	30 (4%)			9 (1%)
04	30 (4%)			4 (0%)
05	29 (4%)			9 (1%)
06	39 (5%)	4 (0%)	4 (0%)	10 (1%)
07	30 (4%)	23 (3%)	21 (2%)	29 (4%)
08	114 (15%)	60 (8%)	60 (8%)	51 (6%)
09	101 (14%)	90 (12%)	88 (12%)	65 (9%)
10	120 (16%)	387 (53%)	382 (53%)	86 (11%)
11	190 (26%)	574 (79%)	574 (79%)	91 (12%)
12	177 (24%)	531 (73%)	529 (73%)	108 (15%)
13	189 (26%)	531 (73%)	529 (73%)	114 (15%)
14	166 (23%)	548 (76%)	542 (75%)	126 (17%)
15	39 (5%)	466 (64%)	464 (64%)	119 (16%)
16	51 (7%)	289 (40%)	286 (39%)	78 (10%)
17	43 (5%)	113 (15%)	113 (15%)	71 (9%)
18	63 (8%)	5 (0%)	5 (0%)	45 (6%)
19	10 (1%)	1 (0%)	1 (0%)	25 (3%)
20	30 (4%)	1 (0%)	1 (0%)	14 (1%)
21	30 (4%)			24 (3%)
22	30 (4%)			20 (2%)
23	30 (4%)			22 (3%)
Total	1631 (9.42666%)	3623 (20.9398%)	3599 (20.8011%)	1165 (6.73333%)	(0%)
Gap h max/mean	161.867/11.038	144.533/9.47931	144.533/9.48563	156.633/3.57129	/

Number of samples taken: 17302

Analysis for 2008/03

Count of samples when each input was active/on.

Hour (UTC)	Battery Voltage High	Input1	LVD Output On	Wind Power	Input4
00				128 (13%)
01				132 (14%)
02				144 (15%)
03				145 (15%)
04				156 (16%)
05				105 (11%)
06				135 (14%)
07		2 (0%)	2 (0%)	131 (14%)
08	45 (4%)	15 (1%)	15 (1%)	137 (14%)
09	103 (11%)	148 (15%)	148 (15%)	177 (19%)
10	153 (16%)	384 (41%)	383 (41%)	174 (18%)
11	278 (29%)	596 (64%)	596 (64%)	195 (20%)
12	226 (24%)	596 (64%)	595 (63%)	198 (21%)
13	205 (22%)	517 (55%)	514 (55%)	213 (22%)
14	138 (14%)	485 (52%)	484 (52%)	220 (23%)
15	137 (14%)	301 (32%)	301 (32%)	235 (25%)
16	144 (15%)	118 (12%)	118 (12%)	208 (22%)
17	112 (12%)	29 (3%)	29 (3%)	190 (20%)
18		7 (0%)	7 (0%)	134 (14%)
19				131 (14%)
20				117 (12%)
21		1 (0%)		105 (11%)
22				126 (13%)
23				109 (11%)
Total	1541 (6.90412%)	3199 (14.3324%)	3192 (14.3011%)	3745 (16.7787%)	(0%)
Gap h max/mean	43.7667/8.93018	25.7333/8.00351	25.7333/8.11733	27.8/2.19565	/

Number of samples taken: 22320

Analysis for 2008/02

Count of samples when each input was active/on.

Hour (UTC)	Battery Voltage High	Input1	LVD Output On	Wind Power	Input4
00				60 (6%)
01				55 (6%)
02				60 (6%)
03				61 (7%)
04				50 (5%)
05				36 (4%)
06				36 (4%)
07				42 (4%)
08		2 (0%)	1 (0%)	45 (5%)
09	6 (0%)	4 (0%)	4 (0%)	84 (9%)
10	33 (3%)	29 (3%)	29 (3%)	96 (11%)
11	131 (15%)	490 (56%)	490 (56%)	123 (14%)
12	234 (26%)	596 (68%)	595 (68%)	136 (15%)
13	247 (28%)	647 (74%)	647 (74%)	149 (17%)
14	139 (15%)	553 (63%)	553 (63%)	135 (15%)
15	30 (3%)	398 (45%)	398 (45%)	123 (14%)
16	25 (2%)	147 (17%)	147 (17%)	80 (9%)
17		19 (2%)	19 (2%)	62 (7%)
18				83 (9%)
19		1 (0%)	1 (0%)	69 (7%)
20				57 (6%)
21				63 (7%)
22				61 (7%)
23				67 (7%)
Total	845 (4.05704%)	2886 (13.8563%)	2884 (13.8467%)	1833 (8.80065%)	(0%)
Gap h max/mean	69.1/26.7697	42.9667/16.9618	42.9667/17.4758	95.8667/3.82871	/

Number of samples taken: 20828

Analysis for 2008/01

Count of samples when each input was active/on.

Hour (UTC)	Battery Voltage High	Input1	LVD Output On	Wind Power	Input4
00				136 (14%)
01				128 (13%)
02				113 (12%)
03				109 (11%)
04				109 (11%)
05				98 (10%)
06				116 (12%)
07				125 (13%)
08				136 (14%)
09				163 (17%)
10				180 (19%)
11	19 (2%)	211 (22%)	211 (22%)	203 (21%)
12	94 (10%)	328 (35%)	328 (35%)	219 (23%)
13	61 (6%)	392 (42%)	392 (42%)	201 (21%)
14	28 (3%)	331 (35%)	331 (35%)	199 (21%)
15		90 (9%)	90 (9%)	197 (21%)
16		8 (0%)	8 (0%)	136 (14%)
17				127 (13%)
18				118 (12%)
19				122 (13%)
20				134 (14%)
21				107 (11%)
22				124 (13%)
23				149 (16%)
Total	202 (0.905018%)	1360 (6.09319%)	1360 (6.09319%)	3449 (15.4525%)	(0%)
Gap h max/mean	238.4/62.7963	116.8/26.1533	116.8/26.1533	26.7/2.29212	/

Number of samples taken: 22320

Analysis for 2007/12

Count of samples when each input was active/on.

Hour (UTC)	Battery Voltage High	Input1	LVD Output On	Wind Power	Input4
00				106 (11%)
01				110 (11%)
02				93 (10%)
03				96 (10%)
04				86 (9%)
05				92 (9%)
06				84 (9%)
07				79 (8%)
08				65 (6%)
09				76 (8%)
10		1 (0%)	1 (0%)	85 (9%)
11	3 (0%)	224 (24%)	223 (23%)	129 (13%)
12	51 (5%)	429 (46%)	429 (46%)	166 (17%)
13	6 (0%)	341 (36%)	341 (36%)	130 (13%)
14		46 (4%)	46 (4%)	148 (15%)
15				136 (14%)
16				122 (13%)
17				142 (15%)
18				108 (11%)
19				115 (12%)
20				98 (10%)
21				114 (12%)
22				116 (12%)
23				108 (11%)
Total	60 (0.268817%)	1041 (4.66398%)	1040 (4.6595%)	2604 (11.6667%)	(0%)
Gap h max/mean	407.133/173.242	93.7/28.8623	93.7/28.8638	129.5/4.21835	/

Number of samples taken: 22320

Analysis for 2007/11

Count of samples when each input was active/on.

Hour (UTC)	Battery Voltage High	Input1	LVD Output On	Wind Power	Input4
00				8 (0%)
01				15 (1%)
02				11 (1%)
03				9 (1%)
04				12 (1%)
05				5 (0%)
06				5 (0%)
07				2 (0%)
08				8 (0%)
09		2 (0%)	2 (0%)	18 (2%)
10	2 (0%)	119 (13%)	119 (13%)	32 (3%)
11	107 (11%)	556 (61%)	556 (61%)	44 (4%)
12	162 (18%)	523 (58%)	523 (58%)	44 (4%)
13	84 (9%)	480 (53%)	480 (53%)	37 (4%)
14		368 (40%)	368 (40%)	25 (2%)
15		200 (22%)	200 (22%)	9 (1%)
16		19 (2%)	19 (2%)	10 (1%)
17				4 (0%)
18				7 (0%)
19				9 (1%)
20				8 (0%)
21				8 (0%)
22				16 (1%)
23				3 (0%)
Total	355 (1.64352%)	2267 (10.4954%)	2267 (10.4954%)	349 (1.61574%)	(0%)
Gap h max/mean	167.5/36.3981	69.0667/20.0311	69.0667/20.0311	94.5333/6.88385	/

Number of samples taken: 21600

Analysis for 2007/10

Count of samples when each input was active/on.

Hour (UTC)	Battery Voltage High	Input1	LVD Output On	Wind Power	Input4
00				2 (0%)
01				1 (0%)
02
03				5 (0%)
04				6 (0%)
05				7 (0%)
06				2 (0%)
07				5 (0%)
08				1 (0%)
09	4 (0%)	15 (2%)	15 (2%)	2 (0%)
10	51 (7%)	172 (23%)	172 (23%)	10 (1%)
11	108 (15%)	388 (53%)	388 (53%)	14 (1%)
12	147 (20%)	361 (50%)	361 (50%)	11 (1%)
13	121 (16%)	428 (57%)	428 (57%)	11 (1%)
14	15 (2%)	342 (45%)	342 (45%)	9 (1%)
15		173 (23%)	173 (23%)	7 (0%)
16		37 (4%)	37 (4%)	1 (0%)
17
18				1 (0%)
19		2 (0%)	2 (0%)
20
21
22
23				1 (0%)
Total	446 (2.5338%)	1918 (10.8965%)	1918 (10.8965%)	96 (0.545393%)	(0%)
Gap h max/mean	119.867/26.7246	138.2/22.2197	138.2/22.2197	139.9/9.73399	/

Number of samples taken: 17602

Equipment Change/Upgrade Notes

These should be read alongside the numbers above:

2008/07/01 (~0900UTC) new laptop/server internal battery fitted.
2008/06/26 Input1 NOW UNALLOCATED; no longer 'DC-DC converter output OK'.
2008/06/24 laptop internal battery died so 2008/06/26 replaced mains/off-grif switchover mechanism with an 'instant' diode-based scheme.
2008/06/05 (~1600UTC) rewiring to reduce impedance and improve behaviour under heavy load.
2008/06/01 (~1700UTC) addition of 2x12Wp amorphous panels (Maplin N32CX, TopRay TPS-102-12) on east-facing near-flat porch roof, bringing off-grid total to ~120Wp.
2008/05/24 (~1200UTC) addition of 12Wp amorphous panel (Maplin N32CX, TopRay TPS-102-12) on east-facing near-flat porch roof (in place of 13Wp test panel).
2008/05/24 (~0700UTC) addition of tiny 2.4Wp (Maplin N59FU, Nikkai) amorphous panel on west-facing near-flat shed roof.
2008/05/10 (~1430UTC) to 2008/05/24 (~1200UTC): temporary/intermittent addition of 13Wp horizontal PV on east side of house to catch morning sun and extend off-grid period for server.
2008/04/17 (~0800UTC) to 2008/04/23 (~1100UTC): major rewiring.
2008/04/10 (~2000UTC): disconnection of 2x1W turbines for wiring rearrangement.
2007/12/01 (~1600UTC): installation and connection of MotorWind 8-turbine device.