Question 1

What is the best solar battery for Canadian homes?

Accepted Answer

The best battery depends on your needs. For value, the Renon 16 kWh ($8,000, $208/usable kWh after rebate) offers excellent price per kWh. For maximum capacity, the Renon 32 kWh ($11,000) provides the most storage. The Tesla Powerwall offers premium efficiency (92%) but at a higher price point.

Question 2

How much does a home battery cost in Canada?

Accepted Answer

Home batteries in Canada range from $8,000 (Renon 16 kWh) to $17,000 (Tesla Powerwall 13.5 kWh). After Ontario's battery rebate (up to $5,000), net costs are $3,000-$12,000. The cost per usable kWh after rebate ranges from $208 to $963.

Question 3

Is a home battery worth it in Ontario?

Accepted Answer

Batteries are particularly worthwhile in Ontario due to the ULO rate plan: charge at 3.9¢/kWh overnight, discharge at 39.1¢/kWh during peak. This 10x price differential can save $1,800-$2,200/year through peak shaving alone. Combined with the $5,000 battery rebate, payback can be 3-5 years.

Question 4

How long do solar batteries last?

Accepted Answer

Most quality solar batteries last 10-15 years with warranties covering 10 years and 3,650-6,000 cycles. LFP chemistry batteries like the Renon and Growatt models typically last longer than NMC chemistry. Daily cycling for peak shaving uses ~365 cycles per year.

Battery	Capacity	Usable	Efficiency	Price	After Rebate	$/Usable kWh	Warranty
Renon 16 kWh	16 kWh	14.4 kWh	90%	$8,000	$3,200	$222	10yr / 6,000 cycles
Renon 32 kWh	32 kWh	28.8 kWh	90%	$11,000	$6,000	$208	10yr / 6,000 cycles
Tesla Powerwall 13.5	13.5 kWh	12.825 kWh	92%	$17,000	$12,950	$1010	10yr / 3,650 cycles
Growatt 10 kWh	10 kWh	9 kWh	90%	$10,000	$7,000	$778	10yr / 6,000 cycles
Growatt 15 kWh	15 kWh	13.5 kWh	90%	$13,000	$8,500	$630	10yr / 6,000 cycles
Growatt 20 kWh	20 kWh	18 kWh	90%	$16,000	$11,000	$611	10yr / 6,000 cycles

Battery	Daily Savings*	Annual Savings	Payback (after rebate)
Renon 16 kWh	$4.56	$1,166	2.7 years
Renon 32 kWh	$9.12	$2,331	2.6 years
Tesla Powerwall 13.5	$4.15	$1,061	12.2 years
Growatt 10 kWh	$2.85	$728	9.6 years
Growatt 15 kWh	$4.28	$1,093	7.8 years
Growatt 20 kWh	$5.70	$1,457	7.5 years

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