In 1969, I published Operating Manual for Spaceship Earth. The core argument was simple: the Earth receives more energy from the Sun in one hour than all of humanity uses in one year. The supply is not the problem. The distribution is the problem. The conversion is the problem. The DESIGN is the problem.

Fifty-seven years later, the physics has not changed. The Sun still delivers roughly 173,000 terawatts to Earth's surface. Humanity uses roughly 18 terawatts. The ratio is approximately 10,000 to 1. We are not short of energy. We are short of design.

The World Game Answer

In the 1960s, I created the World Game. Teams of ordinary citizens were given comprehensive data about global energy resources and asked to make the world work for 100% of humanity without ecological offense. Every time they played, they solved it. Every time.

The solution always looked roughly the same: connect the grids across time zones so that daytime solar generation in one hemisphere powers nighttime demand in the other. Supplement with wind (which blows hardest at night and in winter, complementing solar). Add geothermal where the geology permits. Add hydroelectric where the rivers flow. Store the surplus in batteries, pumped hydro, or hydrogen.

No single technology does the job. The SYSTEM does the job. The same principle that makes a geodesic dome strong: no single triangle bears the full load. Every triangle shares every other triangle's weight. A renewable grid is a geodesic dome of energy sources. Each one covers the weakness of its neighbors.

The Numbers

Here are the numbers an architect respects:

Solar: The cost of solar photovoltaic electricity has dropped 99% since 1976. In most of the world, new solar is now cheaper than new coal, new gas, or new nuclear. This is not a projection. It is a price on a contract that utilities are signing today. The learning curve continues: every doubling of installed capacity drops the cost by another 20-25%.

Wind: Onshore wind is cost-competitive with fossil fuels in most regions. Offshore wind is more expensive but falling fast. Wind and solar are complementary: solar peaks at midday in summer; wind peaks at night and in winter. Together, they flatten each other's gaps.

Storage: Lithium-ion battery costs have dropped 97% since 1991. Grid-scale storage is now being deployed at a scale that was science fiction a decade ago. Pumped hydroelectric storage (pumping water uphill when energy is cheap, releasing it through turbines when energy is expensive) has been reliable for a century. Hydrogen produced by electrolysis is emerging as long-duration storage for seasonal gaps.

Grid: The global electrical grid is the largest machine ever built. Connecting it across continents and time zones (as the World Game participants always proposed) would allow solar energy to follow the Sun around the planet. China to Europe to the Americas to China, a continuous relay of daylight powering a continuous demand for electricity. The technology for high-voltage direct current (HVDC) transmission over thousands of miles exists and is in use today.

What Is Actually Stopping Us?

Not physics. Not engineering. Not cost (renewables are already cheaper than fossil fuels in most applications). Not technology (every component exists and is deployed at scale somewhere in the world).

What is stopping us is DESIGN. Specifically:

The grid was designed for centralized generation. Large power plants pushing electricity outward to consumers. Renewables are distributed: millions of rooftops, thousands of wind farms, each one small, together enormous. The grid needs to be redesigned for bidirectional flow, where every building is both consumer and producer. This is an engineering problem with known solutions. It is not being implemented at the speed the physics allows because the institutions that built the old grid resist redesigning it.

The economic model was designed for fuel. Fossil fuel companies sell a commodity: dig it up, ship it, burn it, bill for it. Solar and wind have no fuel cost. The Sun does not send an invoice. The economic model that extracts profit from fuel has no mechanism for profiting from free fuel. The resistance to renewables is not about energy. It is about who gets paid.

The political system was designed for incumbents. Fossil fuel infrastructure represents trillions of dollars of installed capital. The owners of that capital have political influence proportional to its value. The transition to renewables does not destroy energy. It destroys the BUSINESS MODEL of energy. And business models fight harder than physics.

The Design Response

I spent my life asking: what would we build if we started from the physics instead of from the politics?

The answer: a global energy grid that follows the Sun. Distributed generation on every roof. Storage at every scale from household batteries to continental pumped hydro. Smart grids that balance supply and demand in real time. Buildings that produce more energy than they consume. Cities designed as energy systems, not energy consumers.

None of this is speculative. All of it exists. The pieces are deployed individually around the world. What is missing is the COMPREHENSIVE design: the system view that connects the pieces into a geodesic dome of energy, where every source covers every other source's weakness, and the whole is more reliable than any part.

That is what the World Game proved in the 1960s. That is what the physics proves today. That is what the economics are beginning to prove as renewables become the cheapest option everywhere.

The question is not whether Earth CAN run on 100% renewable energy. The question is whether we will DESIGN the system that makes it so, or continue to let the incumbent business model dictate the pace of the transition.

The Sun does not care about our politics. It delivers 173,000 terawatts every day. The question is what we build to catch it.

Keep Going

Read Richard Feynman's angle on renewable energy for the physics constraints: thermodynamic limits, conversion efficiency, what the laws of physics actually permit and prohibit.

Read Carl Sagan's angle for the planetary perspective: what Venus teaches us about greenhouse effects, and what Earth's energy balance looks like from orbit.

Want to understand the concepts behind this project? Start with What Is the Trim Tab?

"There is no energy crisis, only a crisis of ignorance."

-- Buckminster Fuller, Architect of the Universe March 20, 2026