Is Bitcoin Mining Really a Flexible Grid Resource?

Bitcoin was introduced as a peer-to-peer electronic cash system capable of operating without a central financial intermediary. Over time, its role has expanded beyond payments, with many investors treating it as “digital gold” and a potential reserve asset for the digital economy.

At the same time, Bitcoin’s (BTC ) validation mechanism, proof of work (PoW), makes it an extremely power-intensive process. This has drawn criticism that Bitcoin is a source of pollution and carbon emissions, as well as a strain on power grids already struggling to accommodate increased demand from electrification.

Some options exist to alleviate this issue, with the notable goal of turning Bitcoin mining into an energy infrastructure, able to turn on and off depending on the grid’s needs. This is a promising idea, as the rise of renewables in our power mix means that power generation often exceeds our need. And the waste of this energy makes renewable projects more expensive, either through losing otherwise valuable power or by needing massive battery parks to complement renewable power plants.

But a new study shows this is not always so simple. German researchers at the Witten/Herdecke University and the University Erlangen-Nuremberg found that even in a electric grid rich in renewable supply like Texas, Bitcoin mining put pressure on the grid. They found that while it did not impact prices during daytime (absorbing renewable surplus), it raised nighttime prices, with the effect worse during already-stressed hours.

They published their results in the journal iScience¹, under the title “Local electricity price effects of Bitcoin mining in renewable-rich energy systems”.

Bitcoin Mining As A Counterweight to Renewables

As renewables grow to a significant percentage of our power generation capacity, especially in specific regions rich in wind or solar radiation, they can routinely produce more than the demand is at that instant. That can be a problem, as electricity is hard to store, and the same surplus power might be missing later during the evening or in windless weeks.

This unsold power is lost, and it would be better if it could be used by systems able to activate during periods of cheap or surplus power, which will later disconnect during peak demand hours and low renewable production.

In theory, Bitcoin mining operations can be adjusted in a flexible fashion according to such power surplus. Such practice can raise financial returns on renewable investment, while also providing Bitcoin users with valuable services. The other side of this coin is for Bitcoin mining to be curtailed (interrupted) when requested by the grid operator or during genuine scarcity events.

Another possibility is for Bitcoin mining to be adjusted according to power prices (load-shifting flexibility): adjustment across ordinary price cycles, consuming when renewable output is abundant and withdrawing when the grid tightens.

It is this second form of flexibility that this study is investigating, as it is the notion on which the environmental case for Bitcoin mining rests.

Bitcoin Mining & Texas

Theoretical Flexibility Versus Practice

In theory, Bitcoin miners may be flexible and switch on and off in mere seconds, especially in the case of extreme price or power shortage.

But at the same time, if the differential between power price and the value of mined Bitcoins is sufficiently high, miners have an incentive to add demand in ordinary high-price hours as well.

To clarify what actually happens with large-scale Bitcoin mining operations, the researchers selected Texas as an “ideal case”. The first reason is that the ban on crypto-asset mining in China in June 2021 triggered a large-scale relocation of miners, with a substantial share moving to the US, and Texas attracting the bulk of this investment.

“The installed mining capacity that we identify in this work accounts for approximately 69% of the global Bitcoin hashrate in early 2025, indicating a strong concentration of mining activity in the US.”

Source: iScience

The second reason is that Texas operates one of the most market-driven electricity systems worldwide, with highly granular and responsive price signals. So this both lets miners able to react in complex details to price signals, and researchers to identify how miners influence local market dynamics.

Active Geographical Selection

The researchers identified 30 Bitcoin mining facilities with an operating capacity of 4,789 MW in Texas, and the counties in which they were located.

They found that, on average, as expected, miners locate in counties with higher average total electrical capacity and a higher renewable share, especially solar, and a higher frequency of negative prices.

Source: iScience

“By end-2024, untreated counties average 38% renewables, whereas treated counties exceed 66%. This pattern implies selection into more renewable-intensive counties relative to the average across Texas. ”

The same counties also had higher GDP, indicating selection by Bitcoin miners of economically stronger, industrialized regions with existing energy infrastructure.

Texas’ Turn To Solar

In the past few years, additional solar power capacity has radically changed the emission profile of power generation in Texas, with a steep decline at peak solar hours during the 2021-2024 period.

Source: iScience

In theory, this should make it a good situation to support the claim that Bitcoin mining can support the energy transition.

Studying the price before and after migration of Bitcoin miners, and on a per-county basis, the researchers found that daytime prices are not affected.

However, nighttime prices are found to be higher when Bitcoin miners are present.

“The estimated average treatment effect of Bitcoin mining is an increase of 8.1 USD per MWh, corresponding to 19.9% relative to the pre-treatment average price of 40.5 USD per MWh at nighttime in the treated counties.”

Analyzing Bitcoin Mining Effects

Disappointing Impact On Renewables & Grid

As the frequency of negative-price hours was essentially unchanged after the entry of Bitcoin miners on this electricity market, it shows that the increase in price during nighttime is not the result of consumption of surplus power that would have otherwise been curtailed.

Instead, the nighttime price increase extends into hours of system stress, where power supply barely keeps up with demand.

Source: iScience

It is also likely that the real total effect is not entirely captured by the metric used to detect it.

“Because prices differ across nodes only where transmission constraints bind, our estimates capture the localized component of mining’s price impact and should be read as a lower bound on the total effect. ”

Overall, these results indicate that Bitcoin miners do consume some of the surplus power during daytime, which could be good for renewable power plants, but also increase demand during peak hours and nighttime in general, which increases stress on the grid and the need for backup fossil fuel-powered plants.

“This is not the pattern a load-shifting, surplus-absorbing load would produce. A load-shifting demand would clear the surplus and leave tight hours untouched. Neither happens: negative-price hours remain as frequent as before entry, and high-price nighttime hours become more common. ”

Improper Incentives

One key problem in having Bitcoin mining turn into an intermittent demand only absorbing renewable surplus is that it is ultimately a capital-intensive activity, requiring expensive facilities and computing hardware.

As such, Bitcoin miners will recover their invested capital better by running their facilities at maximum capacity, as long as it is profitable at a given minute.

“Capital utilization dominates the marginal electricity cost, so miners run continuously, curtailing only when prices exceed the marginal revenue of a hash or when they are paid to shut down events that do not recur with the renewable production cycle.”

This is a serious problem, as the influx of Bitcoin miners was envisioned as a way to optimize electricity production and reduce costs for other consumers. But at least in this specific case, this has not worked so far, and electricity has become more carbon-intensive.

“The influx of miners does not ease the system; it stresses it further.”

Overall, the broader investment implication is that grid participation programs, transmission capacity, storage deployment, and energy-market rules may determine whether Bitcoin mining supports renewable integration or merely transfers higher localized costs to other electricity consumers.

This is not to say that this effect will be permanent. While prices respond relatively quickly to demand shocks, investments in generation, storage, and grid infrastructure are characterized by long planning horizons and adjustment delays.

So it is possible that the growth in demand will also be met by a growth in storage capacity and grid interconnection, providing both miners and other users more power during peak hours, especially as storage solutions get cheaper.

Alternatively, by creating a direct source of demand for surplus electricity, Bitcoin mining may reduce the relative profitability of investments in storage technologies and grid reinforcement.

So the total long-term effect of Bitcoin mining on the energy grid and investment in renewables still needs to be fully understood.

“Understanding these investment trade-offs is crucial for evaluating the long-run system-level effects of the new electricity demand by Bitcoin miners in the context of a planned green energy transition.”

Investing In Bitcoin Mining

Riot Platforms

Riot is a Bitcoin miner whose vertically integrated strategy spans Bitcoin mining, engineering, and the development of large-scale data center projects.

With 44.4 EH/s (exa-hashes per second) in Q2 2026, the company represents as much as 4.3% of the global Bitcoin mining network, producing on average 17.6 BTC per day, with an average cost to mine of $49,912/Bitcoin. Its net cost of power was 3.6 c/kWh in 2025, one of the lowest costs of power in the industry, and the company held 11,380 Bitcoin in Q2 2026.

Riot operates massive digital infrastructure and Bitcoin mining facilities in Texas; its 400MW Corsicana facility could be grown to up to 1GW in the long term.

The company is relying on long-term power purchase agreements and active participation in the ERCOT (Electric Reliability Council of Texas) energy market. For example, during a massive heat wave in August 2023, it was paid $31.7M to shut down.

“Large generation sources or loads shutting off quickly can cause grid balancing issues. With visibility and predictability, however, ERCOT views bitcoin miners in particular as “quite useful” for maintaining balance and stability when demand rises and peak generation ramps up, or intermittent generation ramps down.”

In total, Riot has access to 2 GW of total power capacity: 1,700 MW in Texas and 300 MW in Kentucky.

Besides low energy costs and participation in the ERCOT market, Riot is made more profitable by its acquisition of ESS Metron back in 2021, which manufactures low- and medium-voltage switchgear and power distribution units. This gave the company direct access to these long lead-time components for its own projects, and the possibility to benefit from the growing demand from data center construction in general.

The company is also deploying data centers for AI applications. In 2026, Riot has secured $9.8B of data center revenue with leading players in the AI ecosystem.

Source: Riot Platforms

These data centers will be progressively deployed throughout 2027-2028 and later. Riot expects to refinance the completed initial AMD deployment with an approximately $180M term loan. Management plans to redeploy the resulting proceeds toward the separate frontier AI lab buildout, alongside existing liquidity and additional project debt.

“Net project equity required for the leading frontier AI lab buildout will be funded primarily through existing liquidity position and expected debt financing”

Source: Riot Platforms

With its position in Texas, Riot Platforms can benefit from the abundant renewable energy (RET ) supply of the state, further reducing its energy bills and improving its carbon emissions profile.

Obviously, an investment in Riot Platforms is a bet on Bitcoin staying at a price level that keeps such massive-scale mining profitable. But this is also a bet on Bitcoin miners that are responsible actors and actively contributing to grid stability instead of being a problem for the energy grid, localized in a stable jurisdiction with abundant and cheap energy.

Still, potential investors need to remember that this stock remains exposed to Bitcoin prices, network difficulty, power costs, regulatory changes, and infrastructure-development risk, making it an investment option that needs to be part of a balanced portfolio.

Latest Riot Platforms (RIOT) Stock News and Developments

Study Referenced

^{1. Maximilian Gill, Jona Stinner, and Marcel Tyrell. Local electricity price effects of Bitcoin mining in renewable-rich energy systems. iScience. Volume 29. Issue 10117584, October 16, 2026. https://doi.org/10.1016/j.isci.2026.117584}