Domain Arrivals
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Featured in Domain Arrivals · 2026-08-15

Megawatt.fun: The Arbitrage Floor Is Thin

megawatt.fun ↗ · Developer Corner · score 87.0
○Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content ✦Pretty: notable design, copy, craft, or presentation ◆Pro: polished, finished-feeling, serious, or operationally mature ◇Niche: specific audience, workflow, or unusually focused use case ◉Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

An energy-tooling suite built around ERCOT battery dispatch, live settlement prices, and a tracker for humanity’s position on the Kardashev scale.

Why it surfaced

Its day-ahead planner uses real ERCOT prices and refuses to cycle batteries when the spread cannot cover round-trip losses. The site also publishes its assumptions, source code, tests, and a deliberately sobering result: on the cited mild August day, one 25 kWh battery clears only $0.43 in energy-only arbitrage.

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The Two-Tonne Temperature Problem

August 15’s newborn domains include a live-aboard hydrogen airship with a two-tonne lift problem, a Japanese toolbox that explains its assumptions, an advisory-by-advisory Hawaiʻi hurricane archive, and a wedding-gift game about ungrateful poultry.

This is one of 1,000 discoveries in the 2026-08-15 Domain Arrivals issue.

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More from Developer Corner

Three more arrivals

Airship.diy: an open notebook for a live-aboard hydrogen airship airship.diy

A detailed engineering model for a hydrogen airship designed to house two people for a year, run on sunlight and fuel cells, and land on water.

 Videola, the video editor that counts in flicks videola.app

A browser-based video editor built around a Rust core, with desktop, mobile, Docker, and self-hosted versions.

 Is it DNS? A live resolver health board and domain auditor isitdns.org

A public DNS toolkit that monitors resolver health, audits domains, runs comparative dig queries, and teaches the concepts behind them.