Firm power
Electricity available on demand from reliable sources, not intermittent ones like solar or wind.
Firm power is electricity that is always available when you need it. Think of it like a light switch that always works, no matter the time of day or weather.
This is different from sources like solar panels, which only produce power when the sun is shining, or wind turbines, which only work when the wind is blowing. Firm power usually comes from power plants that can run continuously, like those using nuclear, coal, or natural gas.
Firm power refers to electricity generation capacity that can be dispatched on demand and reliably supplied over extended periods. It contrasts with intermittent renewable sources such as solar and wind, whose output fluctuates based on environmental conditions. Sources typically considered firm include nuclear, coal, natural gas, and hydroelectric power when reservoir levels are sufficient.
Frontier AI labs are increasingly focused on the massive energy demands of training and running large AI models. Ensuring a consistent and reliable power supply, or firm power, is critical for these energy-intensive operations, as highlighted by Anthropic's recent energy report.
- Build AI in America: Anthropic Energy ReportAnthropic · Anthropic News ·
- Anthropic Claude
- Anthropic's energy report discusses the need for policy changes to ensure sufficient firm power for AI development.
- Baseload power
- Baseload power is a subset of firm power, referring specifically
- Intermittent power
- Intermittent power comes from sources like solar and wind th
The term 'firm power' is a standard concept in the electricity industry, used to distinguish reliable generation sources from intermittent ones.
While you can't directly 'see' firm power, consider the energy needs of AI. Think about how much electricity a large language model like ChatGPT or Claude uses. Then, imagine needing that power 24/7, which requires reliable, firm sources.
The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news.
- PromptRole-play a student struggling with math for AI tutor simulationSimulate a student's math struggles and uncertainty for AI tutor evaluation. · 5 min
- TemplateReusable workflow templates for healthcare teamsTeams can create and share templates for common workflows like documentation or prior authorizations. · 15 min
- TemplateTemplate for building an AI tool tailored to your workA structured approach to defining and building a custom AI tool for specific business needs. · 15 min
- TemplateEvals CSV prompt list for agent skillsA CSV file template for listing prompts used in evaluating agent skills. · 20 min
- HeuristicDouble coding agent task completion with docs linksProviding coding agents with a documentation link significantly increases their task completion rate. · 2 min
Questions people ask
- Why is firm power important for AI?
- AI models, especially large ones, require vast amounts of electricity for training and operation. Firm power ensures this electricity is consistently available, preventing disruptions to AI services.
- What are examples of firm power sources?
- Common examples include nuclear power plants, coal-fired power plants, and natural gas power plants. Some hydroelectric facilities can also provide firm power.
First seen on Subvolts Jul 23, 2025. Updated Sep 14, 2026. Written by an AI model from the items above and reviewed against them weekly; report an error.