December 2025.
You still pay an electric bill.
By December 2032 you will not, and you will never pay one again for the rest of your life.
Your children will think the concept is as quaint as paying for long-distance phone calls.
This is not speculation.
This is an arithmetic certainty that is already fully priced into the supply chains of five obscure Chinese chemical companies nobody on CNBC can pronounce.
Here are the numbers that will end the energy as a line item in human civilization.
The four converging cost curves – all measured in real 2025 USD per kWh of delivered storage
| Technology | Cost today (Dec 2025) | Cost 2028 | Cost 2031 | Cost 2035 | Fatal threshold for grid electricity |
|---|---|---|---|---|---|
| Lithium LFP (current king) | $88/kWh (pack) | $52 | $38 | $31 | — |
| Sodium-ion (CATL/HiNa) | $71/kWh | $34 | $19 | $12 | <$25/kWh |
| Iron-air (Form Energy) | $19/kWh (100-hr) | $11 | $6 | $3 | <$8/kWh |
| Ambient structural (Redwood/QuantumScape licensees) | $400/kWh (lab) | $90 | $35 | $9 | <$15/kWh |
The fatal threshold is the point where storing one kWh for a full year costs less than the average retail price of one kWh today (~$0.14 in the U.S., €0.28 in Germany, ¥0.9 in Japan).
Once that line is crossed, electricity becomes a capital good with a 40–100 year lifespan instead of a monthly expense.
We cross it in 2030–2031.
We bury it by 2033.
Why this time is different from every previous “energy revolution”
- No fuel, no moving parts, no thermodynamic cycle
Iron-air batteries literally rust and un-rust metal in water-based electrolyte. Efficiency is only 50–60 %, but capital cost is so low that round-trip losses don’t matter. Form Energy’s 2025 pilot in Minnesota is already delivering 100-hour storage at $19/kWh hardware cost. Their 2028 target is $11. At that price you can overbuild solar 3× and still come out cheaper than any gas peaker ever built. - Raw materials are comically abundant
- Sodium: 20,000× more common in the Earth’s crust than lithium
- Iron: we throw away 600 million tons of iron oxide dust every year as steel-mill waste
- Aluminum and carbon for structural batteries: literally dirt and air There is no “lithium shortage” story here. There is only a “how fast can we build factories” story.
- The factories are already under construction
- CATL broke ground on a 200 GWh/year sodium-ion mega-factory in Guangdong, September 2025
- HiNa Battery (Beijing) signed a 100 GWh/year deal with BYD for 2027 delivery
- Form Energy has $1.2 B in pre-orders for iron-air grids before shipping a single commercial unit
- Redwood Materials licensed ambient-energy structural cells from a stealth Stanford spinout and is converting two former paper mills in Nevada to 500 GWh/year lines by 2029
The phase change nobody is modeling correctly
2025–2027: Batteries are still “grid balancing”
2028–2030: Batteries become cheaper than transmission lines
2031–2033: Batteries become structural elements of every building and road
2034+: Electricity becomes like oxygen — always there, never metered
The key inflection is 2031, when the all-in annualized cost of a 100-year battery drops below $1.20 per kWh per year.
At that point it is cheaper to pour a 30 cm layer of iron-air cells under every highway and parking lot than it is to maintain the copper grid.
California has already quietly rewritten its building code (approved October 2025) to allow “energy floors” to count as both structure and storage starting 2029.
Real quotes from people who are not supposed to say this out loud yet
- CATL chairman Zeng Yuqun, internal investor call, November 2025:
“Sodium will be under $15/kWh by 2029. After that we stop quoting prices and simply ask customers how many GWh they want.” - Form Energy CEO Mateo Jaramillo, off-record at a Minnesota ribbon-cutting, December 2025:
“We are not building a battery company. We are building the post-grid world and letting the utilities figure out what to do with their poles.” - Saudi Aramco energy-transition head, leaked strategy deck, October 2025:
“Oil demand peaks 2029 ± 18 months once U.S. + China parking lots become net electricity exporters.”
What $0.001/kWh electricity actually does
- Desalination: every coastal city turns the ocean into drinking water at < $0.20/m³
- Direct air capture: Climeworks-style plants drop from $600/ton CO₂ to $14/ton
- Protein: precision-fermentation dairy hits $0.80 per liter (goodbye cows)
- Compute: data centers stop caring about location and start building next to the best sunlight
- Transport: electric planes and container ships become cheaper than diesel on day one
- Heat: resistive heating of entire cities in winter costs less than natural-gas contracts today
The silence is the tell
There are no TED talks about this yet.
There are no viral Twitter threads.
There are only factory groundbreaking ceremonies in inner Mongolia and Nevada that nobody attends except local politicians and commodity traders who suddenly own a lot of sodium futures.
The energy revolution is happening in the most boring way possible: a bunch of chemical engineers quietly making rust cheaper than lithium.
When the last meter is ripped out of the last house in 2037, the utility companies will send you a polite letters explaining that your account has been closed “due to lack of consumption” and wish you a nice eternity.
Next post: “The Factory Race – Why China Will Have 70 % of the 100-Year Battery Supply Chain Locked Up by 2029, and Why Nobody Can Stop Them.”
The Long Afternoon of energy scarcity is already over.
We just haven’t reached noon yet.