Grid StorageMarket ShiftJun 23, 2026, 9:39 AM· 6 min read

Wind and Solar Surpass Gas Globally as Battery Boom Drives Down Wholesale Power Prices

For the first time in history, wind and solar power generated more electricity globally than natural gas. Paired with a record-breaking rollout of utility-scale battery storage, the milestone is driving wholesale electricity prices to historic lows across major markets.

By Factlen Editorial Team

Energy Market Analysts 40%Grid Operators 30%Renewable Developers 30%
Energy Market Analysts
Focus on the economic crossover point where renewables and batteries fundamentally outcompete fossil fuels on cost.
Grid Operators
Emphasize the urgent need for massive transmission upgrades and the challenges of managing negative wholesale prices.
Renewable Developers
Highlight the deployment boom and the strategic shift toward hybrid solar-plus-storage projects to ensure bankability.

What's not represented

  • · Fossil Fuel Producers
  • · Residential Consumers

Why this matters

The long-promised transition to renewable energy has crossed a tipping point where it is now fundamentally cheaper and more reliable than fossil fuels. As battery storage scales to capture excess midday solar, the global economy is securing a cleaner, lower-cost energy foundation.

Key points

  • Wind and solar generated more electricity globally than natural gas for the first time.
  • U.S. solar power overtook coal in May 2026 to become the third-largest electricity source.
  • Global battery storage additions are projected to exceed 100 gigawatts this year.
  • Battery prices have hit a record low of $70 per kilowatt-hour.
  • Wholesale electricity prices are dropping to historic lows in markets with high renewable penetration.
  • Capital investment is rapidly shifting from power generation to grid infrastructure upgrades.
45.5 TWh
U.S. solar generation in May 2026
100 GW
Projected 2026 global battery additions
$70/kWh
Record low price for battery storage
3 TW
Total global solar capacity

For the first time in recorded history, wind and solar power have generated more electricity globally than natural gas. According to data confirmed in mid-2026, the long-anticipated crossover has finally arrived, driven by a staggering acceleration in renewable deployments over the past twenty-four months. The shift is not merely a temporary blip caused by fuel shortages, but a structural realignment of the global energy market. In the United States, the transformation reached its own domestic milestone in May 2026, when solar power officially overtook coal to become the country's third-largest source of electricity, trailing only natural gas and nuclear power.

The sheer scale of the buildout has consistently outpaced analyst projections. Global solar capacity topped 3 terawatts in early 2026, having tripled in just four years. In 2025 alone, solar photovoltaics accounted for 77 percent of all new renewable capacity additions worldwide. During the peak generation month of May 2026, U.S. solar installations produced an all-time high of 45.5 terawatt-hours, a 17 percent jump from the previous year. This rapid expansion has effectively crowded fossil fuels out of the margin where growth decisions are made, capturing the vast majority of new capital flowing into the energy sector.

However, the defining energy story of 2026 is no longer just about manufacturing and installing solar panels. The industry has largely solved the generation side of the equation. The critical breakthrough currently reshaping wholesale markets is the massive, unprecedented deployment of utility-scale battery energy storage systems. For years, grid operators struggled with the "duck curve"—the phenomenon where solar generation floods the grid at midday, only to vanish at 6:00 p.m. precisely when evening residential demand peaks. Without storage, utilities were forced to fire up expensive, carbon-intensive natural gas peaker plants to bridge the gap.

Key milestones in the 2026 energy market highlight the rapid acceleration of solar and storage.
Key milestones in the 2026 energy market highlight the rapid acceleration of solar and storage.

That dynamic is now collapsing. In 2026, annual global battery energy storage additions are projected to exceed 100 gigawatts for the first time, marking a turning point for grid stability. Battery prices have plummeted to a record low of roughly $70 per kilowatt-hour, fundamentally altering the math of power generation. The levelized cost of a four-hour lithium-ion storage facility has now fallen below the effective cost of building and operating a new natural gas peaker plant in multiple major markets. As a result, developers are increasingly abandoning standalone solar projects in favor of hybrid "solar-plus-storage" facilities.

These massive battery banks act as the grid's immediate shock absorbers. They engage in a highly profitable practice known as energy arbitrage: buying or absorbing electricity during the midday solar glut when power is incredibly cheap, and discharging it back into the grid during the lucrative evening peak. In regions like California, which recently surpassed 10 gigawatts of operational battery storage, this time-shifting capability has allowed the state to run on 100 percent renewable energy for brief periods—a milestone that would have been physically impossible just a few years ago without catastrophic grid instability.

These massive battery banks act as the grid's immediate shock absorbers.

The combination of abundant solar and massive battery capacity is actively driving wholesale electricity prices to historic lows. In Spain, where renewables supplied more than half of the country's electricity over the past year, wholesale prices have consistently remained well below the European average. On the sunniest and windiest days, the sheer volume of zero-marginal-cost electricity outpaces demand, pushing wholesale prices below zero. Grid operators are effectively paying battery facilities to absorb the excess power, which is then sold back when the sun sets.[3]

Similar trends are emerging globally. In Türkiye, record renewable generation in the first five months of 2026 drove wholesale electricity prices to their lowest levels since the market was established in 2011, saving the government nearly $750 million in electricity subsidies. Across the European Union, natural gas influenced electricity prices in just 15 percent of hours during the first quarter of 2026, a sharp decline from previous years. By reducing the number of hours that expensive gas-fired plants are needed to set the market price, renewables are systematically undercutting the fossil fuel business model.[1][3]

The cost of utility-scale battery storage has fallen below the cost of operating new natural gas peaker plants in many markets.
The cost of utility-scale battery storage has fallen below the cost of operating new natural gas peaker plants in many markets.

Despite plummeting wholesale costs, a frustrating disconnect remains for everyday consumers: household electricity bills have not dropped at the same dramatic rate. While the raw energy is cheaper than ever, retail electricity bills are heavily burdened by non-energy charges. Grid maintenance, transmission upgrades, taxes, and legacy infrastructure fees continue to make up a massive portion of what consumers pay. Furthermore, electricity is often taxed more heavily than natural gas, artificially weakening the financial incentive for households to electrify their heating and cooking appliances.[2][3]

To bridge this gap, capital is rapidly pivoting from generation to infrastructure. The International Energy Agency projects that global grid investment will reach $550 billion in 2026, up nearly 20 percent from the previous year. Upgrading transmission lines, deploying smart grid technologies, and building out high-voltage interconnectors are now the primary bottlenecks to a fully decarbonized energy system. Policymakers are increasingly focused on market reforms designed to pass wholesale savings directly to consumers, encouraging demand-side flexibility where electric vehicles and smart appliances automatically charge when prices are lowest.[2][3]

Beyond traditional lithium-ion systems, the storage landscape is rapidly diversifying to meet the escalating demands of a fully electrified grid. Sodium-ion batteries are beginning to see widespread commercial deployment in stationary grid applications across multiple continents. While they offer a slightly lower energy density than their lithium counterparts, they rely on vastly more abundant raw materials, boast improved thermal stability, and eliminate many of the geopolitical supply chain bottlenecks associated with rare earth metals. This technological diversification ensures that the global storage boom can continue scaling indefinitely without triggering a new resource crisis.

Capital is rapidly shifting from power generation to grid infrastructure and transmission upgrades.
Capital is rapidly shifting from power generation to grid infrastructure and transmission upgrades.

Simultaneously, the explosive rise of artificial intelligence and massive data centers is creating a new, voracious source of baseline electricity demand. Rather than relying entirely on local utilities to provide uninterrupted power, major technology companies are increasingly signing corporate power purchase agreements that natively integrate hybrid storage solutions. By pairing dedicated solar farms with massive on-site battery reserves, these data centers can manage their own peak loads, protect against grid outages, and meet strict corporate sustainability targets without placing additional strain on the broader public electrical infrastructure.

Ultimately, the data from 2026 proves that the clean energy transition has crossed a point of no return. It is no longer reliant on government subsidies, policy mandates, or technological moonshots to remain viable. The trajectory is now baked into the raw, undeniable economics of the market. With wind and solar generation outcompeting gas, and battery storage successfully neutralizing the intermittency problem, the global economy is rapidly securing a cleaner, more resilient, and fundamentally lower-cost energy foundation.

How we got here

  1. 2020-2023

    Global supply chain disruptions and inflation temporarily stall the decline in battery and solar panel costs.

  2. 2024

    Battery prices resume their steep decline, and global solar capacity crosses the 2 terawatt threshold.

  3. 2025

    Solar photovoltaics account for 77% of all new renewable capacity additions worldwide.

  4. May 2026

    Solar power overtakes coal in the United States for the first time, becoming the third-largest electricity source.

  5. Mid-2026

    Data confirms wind and solar generated more electricity globally than natural gas, as battery additions cross 100 GW.

Viewpoints in depth

Energy Market Analysts

Focus on the economic crossover point where renewables and batteries fundamentally outcompete fossil fuels on cost.

Market analysts argue that the energy transition is no longer a policy-driven initiative, but a ruthless economic reality. With battery prices hitting $70/kWh, the levelized cost of storing solar energy has fallen below the cost of firing up a natural gas peaker plant. Analysts point out that capital markets are responding to this reality by starving new fossil fuel projects of funding, recognizing that zero-marginal-cost renewables paired with cheap storage offer vastly superior long-term returns.

Grid Operators

Emphasize the urgent need for massive transmission upgrades and the challenges of managing negative wholesale prices.

For the engineers managing the physical grid, the solar boom presents a massive logistical headache. Grid operators warn that while generation is cheap, the transmission infrastructure required to move that power from remote solar farms to urban centers is severely lacking. They highlight the increasing frequency of negative wholesale prices—where the grid is so flooded with midday solar that operators must pay to curtail it—as a symptom of a system that desperately needs hundreds of billions in smart grid and interconnector investments.

Renewable Developers

Highlight the deployment boom and the strategic shift toward hybrid solar-plus-storage projects to ensure bankability.

Developers are rapidly adapting to the new market dynamics by abandoning standalone solar projects. Because midday wholesale prices are collapsing due to oversupply, a solar farm without a battery is becoming difficult to finance. Developers argue that hybrid 'solar-plus-storage' facilities are now the industry standard, allowing them to capture cheap midday power and sell it during the lucrative evening peak, ensuring project bankability in an increasingly saturated market.

What we don't know

  • How quickly regulatory reforms will allow wholesale electricity savings to be passed down to residential consumer bills.
  • Whether the rapid buildout of high-voltage transmission lines can keep pace with the exponential growth of new solar capacity.
  • How the emerging demand from artificial intelligence data centers will impact long-term regional grid stability.

Key terms

Energy Arbitrage
The practice of storing electricity when prices are low (such as during midday solar peaks) and selling it back to the grid when prices are high.
Levelized Cost of Storage (LCOS)
The total lifetime cost of building and operating an energy storage system, divided by its total energy output.
Peaker Plant
A power plant, typically running on natural gas, that only operates during times of peak electricity demand.
Duck Curve
A graph showing the timing imbalance between peak solar energy generation (midday) and peak electricity demand (evening).

Frequently asked

Why are my electricity bills still high if solar is so cheap?

While the wholesale cost of generating electricity has plummeted, retail bills include heavy non-energy charges like grid maintenance, transmission upgrades, and taxes, which have remained high or increased.

What happens to solar power when the sun goes down?

Historically, natural gas plants would turn on to meet evening demand. Now, massive utility-scale battery banks discharge the excess solar energy they absorbed during the day.

Are there enough materials to build all these batteries?

While lithium-ion remains dominant, the industry is rapidly diversifying into alternative chemistries like sodium-ion, which use vastly more abundant materials to prevent supply chain bottlenecks.

Sources

Source coverage

3 outlets

3 viewpoints surfaced

Energy Market Analysts 40%Grid Operators 30%Renewable Developers 30%
  1. [1]EmberGrid Operators

    Renewables drove electricity prices to record lows

    Read on Ember
  2. [2]International Energy AgencyGrid Operators

    Electricity Mid-Year Update 2026

    Read on International Energy Agency
  3. [3]Earth.orgGrid Operators

    Renewables Are Pushing Wholesale Prices Down

    Read on Earth.org
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