Snapshot

The solar, wind, and renewables sector manufactures, develops, and operates equipment and projects that convert sunlight and wind into electricity. Global renewable capacity hit 5,149 GW at end of 2025, after 692 GW of net additions — the largest single-year build ever (IRENA, April 2026). Solar alone added 511 GW, roughly 75% of all new renewable capacity.

The unit of trade is the gigawatt (GW): one GW powers roughly 700,000–800,000 US homes. Manufacturing capacity for solar panels — roughly 1,800 GW/yr — is about 3.5× actual installations (511 GW in 2025). The five companies here make money in different ways: selling hardware at a markup (FSLR, ENPH), earning long-term power-purchase-agreement (PPA) revenue (BEP, AES, XIFR), or collecting IRA tax credits (FSLR).

The product & how money is made

Solar panels (modules)

A solar module converts sunlight into DC electricity. Manufacturers sell modules by the watt. First Solar (FSLR) makes thin-film cadmium telluride (CdTe) panels — a different technology from the crystalline silicon (c-Si) used by most Chinese manufacturers. First Solar sells primarily to utility-scale project developers under multi-year supply contracts. Revenue comes from module sales plus Section 45X advanced manufacturing tax credits for US-made content — guided at $2.1–2.2B for 2026 (First Solar Q1 2026 earnings, April 2026).

Microinverters

A microinverter converts DC from a single solar panel into AC electricity. Enphase (ENPH) sells microinverters, batteries, and monitoring software to residential and commercial solar installers. Revenue comes from hardware sales (units shipped × ASP). Enphase shipped 1.41 million microinverters (627.6 MW DC) in Q1 2026 (Enphase Q1 2026 earnings, April 2026). The company also earns from its Propel prepaid solar lease origination platform.

Renewable fleet ownership (YieldCos and IPPs)

BEP, AES, and XIFR own and operate portfolios of wind farms, solar plants, hydroelectric dams, and battery storage. They sell electricity under long-term PPAs (typically 10–25 years, often with inflation escalators) to utilities, corporations, and governments. Cash comes in as contracted power revenue, minus operating costs, debt service, and maintenance capex. BEP and XIFR are structured as limited partnerships that distribute cash to unitholders. AES is a C-corp that pays a common dividend (yield ~4.8% at current price).

Demand

Contracted & delivered (verified)

• Global installations (2025): 692 GW of renewable capacity added, of which 511 GW was solar and 169 GW was wind. IRENA, WWEA
• US solar (2025): 43.2 GW installed (34.7 GW utility-scale, remainder residential/commercial). Solar was 54% of all new US generating capacity for the fifth consecutive year. Texas led with ~11 GW. Wood Mackenzie/SEIA
• US wind (2025): 6.3 GW added, bringing cumulative US wind to 161 GW. WWEA
• Corporate PPAs (2025): 55.9 GW of clean energy PPAs signed globally, down 10% from 2024. US was a record 29.5 GW but concentrated: only 33 unique buyers (down 51% YoY), with Amazon, Meta, Google, and Microsoft accounting for 49% of global volume. Meta and Amazon each contracted ~10.2 GW. BNEF, Jan 2026
• First Solar backlog: 47.9 GW of contracted module sales as of Q1 2026. Full-year 2026 shipment guidance: 17.0–18.2 GW. FSLR Q1 2026 10-Q
• AES renewable backlog: 7.3 GW under contract as of 2024 10-K, majority expected online through 2027. 53 GW development pipeline. AES 2024 10-K
• BEP pipeline: 200+ GW development pipeline. Long-term PPAs signed with Microsoft and Google include inflation escalators. BEP 2025 disclosures

Forecast (uncontracted)

• US solar 2026: Wood Mackenzie projects ~43 GW of installations (roughly flat with 2025), with volumes not expected to exceed 2025 levels again until 2033. est.
• China slowdown signal: China's new PV installations in Jan–Apr 2026 were 50.9 GW, down 51% year-on-year. China installed ~340 GW of solar in 2025 (roughly half of global additions). PV Tech, May 2026
• Global wind: 169 GW added in 2025 (up 35% YoY), but 77% was China. Rest-of-world wind additions were 38.7 GW, below the 44 GW added in 2023. WWEA
• Corporate PPA shift toward nuclear: Nearly 23% of Meta and Amazon's 2025 PPA activity involved nuclear power, not renewables. Hybrid solar+storage and baseload-like deals reached 5.8 GW. BNEF
• Enphase AI data center TAM: Enphase estimates the US addressable market for its IQ SST (microinverter for data center solar) at 11 GW by 2031. Demo planned 2026, pilots 2027, volume shipments 2028. est.

Supply

Manufacturing capacity (solar modules)

• Global module capacity: ~1,800 GW (1.8 TW) of annual manufacturing capacity as of end-2025 est. (Climate Energy Finance). This is roughly 3.5× the 511 GW actually installed globally in 2025.
• China dominance: China controls the vast majority of the solar supply chain (polysilicon, wafers, cells, modules). Chinese module capacity grew 29% YoY in 2024. The top four Chinese manufacturers lost $1.54B in H1 2025 despite shipping over 100 GW (PV Tech).
• Chinese price floor: Module prices fell to €0.085–0.095/W ($0.10–0.11/W) in late 2024/early 2025 — below production cost for many manufacturers. Chinese government intervened: factory utilization cuts (up to 70%), PERC output reductions, and cancellation of the 13% VAT export rebate. Prices rebounded ~48% between Sep–Oct 2025 but remain below 2023 levels (PV Tech).
• US module capacity: ~55–60 GW of annual nameplate by end-2025 est. (CEF). First Solar alone will reach 25 GW globally (14 GW US) by end-2026, up from ~16 GW production in 2024. Key facilities: Ohio (legacy + expanded), Alabama (3.5 GW, opened Sep 2024, $1.1B), Louisiana (3.5 GW, $1.1B, commissioned H2 2025), India Tamil Nadu (3.3 GW), South Carolina finishing facility (late 2026).
• First Solar's differentiation: CdTe thin-film uses no Chinese crystalline silicon. US manufacturing qualifies for Section 45X credits ($0.12–0.17/W). Tariffs on Chinese imports further insulate US ASPs.

Fleet capacity (operating renewable assets)

Key bottleneck

The bottleneck for renewables is not manufacturing (supply vastly exceeds demand for hardware). The bottlenecks are: (1) grid interconnection queues (2,500+ GW in US queues, 4–5 year wait times est.), (2) permitting and land, and (3) transmission infrastructure to deliver power from where sun/wind is abundant to where load centers are.

The gap

Solar modules: supply vastly exceeds demand. Global manufacturing capacity is ~1,800 GW/yr est. versus ~511 GW installed in 2025. Even after Chinese production cuts, utilization is well below 50%. Module prices globally fell 50%+ from 2023 peaks and remain near all-time lows outside the US. Chinese manufacturers are losing money at these prices.

US market is the exception. Tariffs on Chinese imports (AD/CVD, Section 301, Section 232) plus IRA Section 45X tax credits create a price floor for US-manufactured modules. First Solar's US ASPs are multiples of Chinese export prices. This tariff+subsidy wall is the single most important variable for FSLR's economics.

Renewable operating assets: not hardware-constrained. Demand for contracted renewable power is strong (55.9 GW of corporate PPAs in 2025), but new projects can be built in 1–3 years for solar and 2–4 years for wind. The constraint is grid connection, not hardware.

Intermittency and AI/data center demand. Solar produces power ~25% of the time (capacity factor), wind ~35% est.. AI data centers require 24/7/365 power at near-100% uptime. Nearly 23% of Meta and Amazon's 2025 PPA activity was nuclear, not renewables (BNEF). Renewables are part of the portfolio mix but cannot be the sole power source for always-on workloads without large-scale storage.

The players

Key differences

• FSLR is a manufacturer (sells hardware). $2.1–2.2B of guided 2026 earnings come from Section 45X tax credits. Book value $9.9B ($91.93/share). Net cash $1.8B ($2.4B cash minus $0.6B debt). 31% net margin. No dividend.
• ENPH is a hardware company selling into the residential solar channel. Revenue fell 42% in 2024 from the 2022–2023 peak due to channel inventory destocking and higher interest rates suppressing residential solar demand. Q1 2026 revenue down 21% YoY. 44% gross margin, −9.1% operating margin. Net cash $318M ($930M cash minus $612M debt after paying off $632.5M convertible notes).
• BEP is asset-heavy. $37.4B of debt funds long-lived assets (hydro dams last 80–100 years). Reported FCF is deeply negative because of continuous asset acquisition. The standard metric is FFO (Funds From Operations), which BEP targets to grow 10%+/yr. 4.3% distribution yield. Hydro is the backbone: baseload, dispatchable, long-lived.
• AES is being taken private at $15/share by Global Infrastructure Partners and EQT. Stock trades at $14.71 (1.9% discount to deal price). AES operates across 15 countries with a mix of renewables, gas, coal, and LNG. $31.8B of debt (3× market cap).
• XIFR (formerly NEP) suspended its distribution in Jan 2025. $828M of goodwill wiped in 24 months. Issued $2.5B in senior unsecured notes at 7.75–8.625% coupons. S&P BB rating with negative outlook. 29% of revenue from two California utilities. P/B of 0.36. Assets are 10.1 GW with 12-year weighted-average PPA life.

The price of exposure

Arithmetic notes

• FSLR at $318 trades near its 52-week high ($320.95). The market is paying $34.2B for a business earning ~$1.7B/yr in net income, guided for $2.6–2.8B EBITDA in 2026. Of that, $2.1–2.2B is Section 45X tax credits. Book value is $9.9B ($91.93/share); P/B of 3.5×. Net cash of $1.8B.
• ENPH at $69: trailing P/E of 68× on $135M net income. Forward P/E of 28.5× implies ~$319M net income (136% increase from TTM). Current quarterly run-rate is ~$283M revenue; annualized ~$1.13B, below the $1.4B TTM. Net cash of $318M.
• BEP has $85.7B in enterprise value. Trailing net income is $22M on $6.3B revenue (0.3% margin). P/E is not meaningful. The business is valued on FFO per unit and distribution growth. Equity ($23.5B) is a thin slice of $85.7B EV.
• AES at $14.71: all-cash take-private at $15/share announced by GIP + EQT. The $0.29 spread is 1.9%. $31.8B debt (EV of $48.5B, equity of $10.5B).
• XIFR at $12.29 trades at 0.36× book value ($33.94/share). Suspended distribution, $6.3B debt at 7.75–8.625% coupons, BB-negative credit rating, $828M goodwill impairment over 24 months, negative FCF. Assets: 10.1 GW with 12-year weighted-average PPA life.

What to deep-dive next

• FSLR Section 45X dependency: What percentage of total earnings come from 45X credits vs product margin? What happens under IRA phase-out, repeal, or modification scenarios?
• FSLR backlog conversion risk: 47.9 GW backlog is ~3 years of production. What are the cancellation terms? Can customers walk away if tariffs change or Chinese module prices drop further?
• ENPH residential solar demand trajectory: US residential solar sell-through fell 48% QoQ and 18% YoY in Q1 2026. Cyclical trough or structural decline from higher rates + ITC step-down?
• BEP FFO per unit and distribution coverage: GAAP financials are not useful for BEP. FFO per unit trend, payout ratio, and achievability of the 10%+ growth target given rising interest costs on $37B of debt.
• AES deal certainty: Which regulatory approvals are still pending across 15 countries? Realistic closing timeline and break risk.
• XIFR capital structure: Can cash flow from 10.1 GW of contracted assets (12-yr weighted avg PPA life) service $6.3B of debt at 7.75–8.625%?
• Intermittency vs AI demand: As hyperscalers pivot toward nuclear and gas for 24/7 power, what is the realistic ceiling for renewable PPA demand from data centers?

Sources & confidence

NEP ticker changed to XIFR in January 2025 when NextEra Energy Partners rebranded to XPLR Infrastructure. AES is subject to a pending $15/share take-private transaction.