Property and equipment is depreciated on a straight-line basis over the following periods:
Leasehold improvements
Lesser of 6 years or lease term
Furniture5 years
Computer hardware and software3 years
Machinery and equipment
5 years or lease term
AutomobilesLease term
Energy systems, net consists of the following (in thousands):
December 31,
20252024
Energy system equipment costs$16,090,654 $14,258,772 
Inverters and batteries3,343,643 2,554,739 
Total energy systems19,434,297 16,813,511 
Less: accumulated depreciation and amortization(3,384,021)(2,732,888)
Add: construction-in-progress767,587 951,492 
Total energy systems, net$16,817,863 $15,032,115 
Property and equipment, net consists of the following (in thousands):
December 31,
20252024
Machinery and equipment
$15,726 $17,375 
Leasehold improvements, furniture, and computer hardware
29,009 43,835 
Vehicles
137,910 159,736 
Computer software57,048 56,742 
Total property and equipment
239,693 277,688 
Less: Accumulated depreciation and amortization
(164,001)(156,449)
Total property and equipment, net$75,692 $121,239 

Historical Timeline

Fiscal YearFiled
2025Feb 26, 2026Showing above
2024Feb 27, 2025
2023Feb 21, 2024
2022Feb 22, 2023
2021Feb 17, 2022
2020Feb 25, 2021
2019Feb 27, 2020
2018Feb 28, 2019
2017Mar 6, 2018
2016Mar 8, 2017
2015Mar 11, 2016

About PP&E Disclosures

The PP&E disclosure details a company's physical asset base — land, buildings, machinery, and equipment — along with the depreciation methods and useful life assumptions that determine how these costs flow through the income statement. Capitalization policy thresholds reveal management's judgment on the boundary between expense and asset, directly affecting both reported earnings and asset values.

Key signals: changes in estimated useful lives or depreciation methods can materially shift reported earnings without any operational change. Compare capital expenditures against depreciation expense — when capex consistently trails depreciation, the asset base may be aging and underinvested. Watch for large asset impairments or write-downs that signal overvalued carrying amounts. Asset retirement obligations reveal future environmental or decommissioning costs that are often underappreciated. Compare PP&E intensity (PP&E-to-revenue) against industry peers to assess capital efficiency and competitive positioning.