Solar poised to overtake coal by 2032 but AI load growth keeps fossil fuels viable
BloombergNEF sees solar as the world's largest power source within six years, while data centre demand and a leaked UK grid warning extend fossil fuel use.
ICE Endex TTF front-month settled at €58.16 per MWh on Thursday (2026-07-30), down 3.9%, as the energy sector digests BloombergNEF's projection that solar will become the world's dominant source of electricity within six years. [LIVE PRICES] The research firm's 2026 New Energy Outlook, released on Tuesday (2026-05-19), forecasts solar surpassing coal, oil and natural gas by 2032, driven by lower costs, technology improvements and surplus manufacturing capacity that have made it the cheapest new-build option in most markets.4,3
Battery storage capacity is forecast to reach 3.8 terawatts by 2035, which would let solar serve more hours of the day and narrow the gap between nameplate capacity and dispatchable output.4 The cost case has largely been settled.4 Whether deployment can outpace rising demand is a different problem.
Data centre expansion is the complication. BloombergNEF finds AI-driven power use will double by 2050 and identifies that load as a key new source of electricity consumption through the 2030s, keeping fossil fuels in the mix longer than a renewables-only buildout would imply.6,2 Gas is also projected to surpass oil as the world's largest primary energy source by mid-century, a forecast that holds even under the firm's base-case solar deployment assumptions.6
That tension is already moving money.1 Fluence Energy, a battery storage and grid software provider, closed at $24.16 on Friday (2026-05-08), up 98.2% in a single week after disclosing master supply agreements with two hyperscalers and a record $5.6 billion backlog.1 Quick Read Capital noted investors are rotating into energy companies able to supply AI data centre buildouts, with nuclear and renewable baseload seen as the cleanest solutions to power constraints.1
Fluence's balance sheet tells a more cautious story.1 Shares were down roughly 39% year to date as of the Friday (2026-05-08) close, with stockholders' equity of negative $265.9 million and cash of just $36.6 million.1 Q1 2026 produced positive adjusted EBITDA of $2.0 million, the fourth consecutive quarter in the black, with non-GAAP gross margin of 52%.1 CEO Arun Narayanan said the operational discipline and margin profile established in 2025 are proving durable.1
Policy readings are split.5,8 UK Department for Energy Security and Net Zero figures, released in May, showed renewables accounted for 52.5% of energy generation in 2025, a record.5 Yet a leaked report commissioned by the National Energy System Operator from Cornwall Insight, published on Monday (2026-07-27), warned the net-zero programme risks higher electricity bills and greater susceptibility to blackouts — giving ammunition to critics of rapid decarbonisation without resolving whether those risks are manageable in practice.8
Australia's reading is unambiguous.7 The CSIRO and Australian Energy Market Operator released the GenCost 2025-26 Final Report on Tuesday (2026-07-14), concluding renewable energy supported by storage provides the lowest-cost generation option and helps protect against global energy shocks.7
BloombergNEF adds a nuclear constraint that shapes long-run gas demand.6 Eighty percent of new nuclear capacity through 2050 will be concentrated in China and India, leaving most advanced economies reliant on gas for firm power.6 Solar may lead on generation share while gas retains the system-balancing role across most OECD markets.6
The storage supply chain is the variable most likely to determine whether BloombergNEF's 2032 timeline holds.4 Panel capacity is already surplus to demand, keeping module prices depressed.4 Bottlenecks in lithium supply and grid interconnection delays across most OECD markets are slowing storage deployment relative to panel additions. If storage lags solar, gas peakers retain their value well past the forecast horizon, and the BloombergNEF central case becomes an optimistic scenario.2 Fluence's negative equity of $265.9 million against $36.6 million in cash is a direct measure of how much capital that manufacturing scale-up still requires.1