Powerwall cost savings

	A	B	C	D	E	F	G	H	I	J	K	L	M
1		Area			Ack, New Zealand
2		System		4.8KW	Solax Grid-tie	and	1.4KW	3x Green MPT-7210A Chargers		6.2KW	Solar Total
3		Grid Power Cost		$0.29	Cents kWh
4		Export Price		$0	Cents kWh
5		Monthly Daily Charge		$12
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7		Month	Year	Used kWh	Solar kWh	Grid kWh	Exported kWh		Bill Without Solar	Bill Solar	Savings		Notes:
8	Winter	July	2015	580	0	580			$180.20				Just Moved in
9	Winter	Aug	2015	600	0	600			$186.00				Just Moved in
10	Winter	Sep	2015	580	0	580			$180.20				No Solar but flatmates
11	Spring	Oct	2015	488	0	488			$153.52				No Solar but flatmates
12	Spring	Nov	2015	500	0	500			$157.00				No Solar but flatmates
13	Summer	Dec	2015	525	0	525			$164.25				No Solar but flatmates
14	Summer	Jan	2016	475	0	475			$149.75				No Solar but flatmates
15	Summer	Feb	2016	?	0	?
16		Month	Year	Used kWh	Solar kWh	Grid kWh	Exported kWh		Bill Without Solar	Bill Solar	Savings
17	Autumn	March	2016	366.6	630	253	288		$118.31	$62.33	$55.98		Just got 4.8kw of solar installed
18	Autumn	April	2016	360.4	498.2	219.6	357.5		$116.52	$47.08	$69.43		4.8kw Solar installed
19	Autumn	May	2016	563.8	378	348	162.2		$175.50	$99.94	$75.56		4.8kw Solar installed
20	Winter	June	2016	658.5	328.7	429.7	100		$202.97	$128.61	$74.35		4.8kw Solar installed
21	Winter	July	2016	771.7	429.3	453.2	110.9		$235.79	$134.56	$101.24		4.8kw Solar installed
22	Winter	Aug	2016	761	480.7	420.9	140.2		$232.69	$122.85	$109.85		4.8kw Solar installed
23	Winter	Sep	2016	587.7	464.8	304	181.1		$182.43	$85.67	$96.76		4.8kw Solar installed
24									Bill est Without Solar	Bill Batt + Solar	Savings
25	Spring	Oct	2016	620.6	710.9	177.8	268.1		$191.97	$42.11	$149.86		Started to use Powerwall build
26	Spring	Nov	2016	478	758.8	111.9	392.6		$150.62	$13.04	$137.58		5kWh Powerwall NOT running 14 nights
27	Summer	Dec	2016	411.7	820.7	80	448		$131.39	-$0.64	$132.03	In Credit :) +Prompt payment discount added $3.89=$4.34Cr	5kWh Powerwall NOT running 2 nights
28	Summer	Jan	2017	472.4	826.6	88.3	442.6		$149.00	$2.20	$146.80	Still in Credit	10kWh Powerwall NOT running 6 nights - 1.4kw charging powerwall
29	Summer	Feb	2017	350.1	626.8	59.8	336.5		$113.53	$2.42	$111.11		10kWh Powerwall NOT running 4 nights - 1.4kw charging powerwall
30	Autumn	March	2017	337.8	599	80.8	302		$109.96	$11.27	$98.69		10kWh Powerwall NOT running 3 nights - 1.4kw charging powerwall
31	Autumn	April	2017	447.5	489.6	129.2	171.3		$141.78	$35.76	$106.01		10kWh Powerwall NOT running 7 nights - 1.4kw charging powerwall
32	Autumn	May	2017	553.5	456.7	180.1	83.4		$172.52	$57.56	$114.96		10kWh Powerwall NOT running 10 nights - 1.4kw charging powerwall
33	Winter	June	2017
34									$1,160.76	$163.73	$997.03
35									Power Cost	Power Cost	Total Savings
36									Bill est Without Solar	Bill Batt + Solar
37									Over 8 Months	Over 8 Months	Over 8 Months
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