Natural Disaster Losses

12 Months Ended

Dec. 31, 2023

Unusual or Infrequent Items, or Both [Abstract]

We have insurance coverage related to property damage and business interruption. When a solar energy system is damaged by a natural disaster, we impair all or a portion of the net book value to operations and maintenance expense in the period for which the amount is probable and can be reasonably estimated. Insurance proceeds for property damage, up to the amount of impairment expense recorded for property damage, are estimated and recorded as a receivable (recorded in accounts receivable—other in the consolidated balance sheet) and a reduction to operations and maintenance expense when the receipt of the proceeds is deemed probable. Insurance proceeds for property damage that exceed the amount of impairment expense recorded and insurance proceeds related to business interruption are recorded when received, as a reduction to operations and maintenance expense. Costs incurred to repair or replace a solar energy system are capitalized (recorded in property and equipment, net in the consolidated balance sheet) and are classified as an investing cash outflow in the consolidated statement of cash flows. Insurance proceeds received for property damage are classified as an investing cash inflow in the consolidated statement of cash flows. Insurance proceeds received for business interruption are classified as an operating cash inflow in the consolidated statement of cash flows.

Hurricane Fiona in Puerto Rico. In September 2022, Hurricane Fiona made landfall in Puerto Rico causing significant wind and water damage to the island's infrastructure, residences and businesses. A majority of Puerto Rico was left without electrical power. In addition, other basic utility and infrastructure services (such as water, communications, ports and other transportation networks) were severely curtailed. We had no material damages to our solar energy systems and energy storage systems.

Hurricane Ian in Florida. In September 2022, Hurricane Ian made landfall in Florida causing catastrophic wind and water damage to the state's infrastructure, residences and businesses. We had no material damages to our solar energy systems and energy storage systems.

Typhoon Mawar in Guam and Northern Mariana Islands. In May 2023, Typhoon Mawar made landfall in Guam and the Northern Mariana Islands causing significant wind and water damage to the islands' infrastructure, residences and businesses. We had no material damages to our solar energy systems and energy storage systems.

Wildfires in Hawaii. In August 2023, a series of wildfires broke out in Hawaii causing widespread damage to the island's infrastructure, residences and businesses. We had no material damages to our solar energy systems and energy storage systems.

During the years ended December 31, 2023 and 2022, we incurred (a) $1.6 million and $633,000, respectively, related to third-parties helping our customers, primarily restarting batteries and (b) $730,000 and $532,000, respectively, related to employees performing similar type work or other work related to the hurricanes. The following table presents the impact of the natural disaster losses as recorded in the consolidated statements of operations:


	Year Ended December 31,
		2023		2022		2021
		(in thousands)
Operations and maintenance expense:
Impairment of solar energy systems due to natural disaster losses		$	3,865	$	—	$	—
Insurance proceeds received/expected to be received—property damage		(3,400)		—		—
Insurance proceeds received—business interruption		(350)		—		—
Other natural disaster-related charges		1,635		633		—
General and administrative expense:
Other natural disaster-related charges		730		532		—
Total		$	2,480	$	1,165	$	—