Research
A 20-megawatt reactor is a rounding error. The transformer shop is the bottleneck.
The Army wants pocket reactors. The country already has a nuclear fleet.
On Wednesday the Army said it would spend up to $2.2 billion over five years so five companies can own, build and run nuclear microreactors at Forts Bragg, Campbell, Hood, Benning and Drum. Each machine is supposed to put out between 1 and 20 megawatts. Officials want more than 20 of them, Army-licensed rather than NRC-licensed, so bases can keep running if the commercial grid goes dark. That is a serious ambition for a motor pool. It is a rounding error for the American power system.
IRENA’s country generation accounts, in a snapshot compiled on 24 August 2026, run through 2023. In that year U.S. nuclear plants produced 808.1 terawatt-hours of electricity — 808 million megawatt-hours, if you prefer the Army’s units. That was 18.1 percent of a 4,452.5 TWh system. In 2000, the first year in the extract, nuclear produced 797.7 TWh, or 19.7 percent. A quarter-century of “next-generation nuclear” talk, and the existing fleet’s output moved by about 10 TWh. The share slipped a little because the rest of the system grew, not because the reactors went away.
A 20-megawatt microreactor running every hour of the year — a nameplate conversion, not a forecast of how the Army’s machines will actually behave — would produce 175.2 gigawatt-hours. Matching 2023’s nuclear output at that rate would take about 4,600 such reactors. Even if all 20 of the Army’s planned machines were built at the top of the advertised range, 400 megawatts of nameplate would generate 3,504 GWh in a full year, or 0.4 percent of U.S. nuclear generation and less than 0.1 percent of total U.S. electricity. The point of Janus is resilience on a base, not a new Tennessee Valley Authority. Anyone selling it as a national nuclear revival is doing marketing, not arithmetic.
U.S. electricity generation by source, 2000–2023
View exact chart values
| year | nuclear_twh | gas_twh | coal_twh | solar_pv_twh | onshore_wind_twh | hydro_twh | renewable_twh | nonrenewable_twh | total_twh | nuclear_share_pct | re_share_pct |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000 | 797.7 | 634.3 | 2129.5 | 0.2 | 5.7 | 253.2 | 330.4 | 3722.3 | 4052.7 | 19.7 | 8.15 |
| 2001 | 792.6 | 659.9 | 1982.1 | 0.2 | 6.8 | 188.3 | 260.4 | 3604.9 | 3865.3 | 20.5 | 6.74 |
| 2002 | 804.5 | 712.4 | 2039.7 | 0.3 | 10.5 | 267 | 347.3 | 3703 | 4050.3 | 19.9 | 8.57 |
| 2003 | 787.8 | 670.2 | 2083.3 | 0.3 | 11.3 | 278.6 | 360.4 | 3721.3 | 4081.8 | 19.3 | 8.83 |
| 2004 | 813.3 | 731.6 | 2090.5 | 0.4 | 14.3 | 271.1 | 358 | 3816.9 | 4174.9 | 19.5 | 8.57 |
| 2005 | 810.7 | 782.8 | 2154 | 0.5 | 17.9 | 272.4 | 366.2 | 3928.2 | 4294.4 | 18.9 | 8.53 |
| 2006 | 816.2 | 842.8 | 2127.8 | 0.7 | 26.7 | 291.9 | 395.2 | 3905.6 | 4300.8 | 19 | 9.19 |
| 2007 | 836.6 | 915.2 | 2118.5 | 1 | 34.6 | 249.6 | 361.8 | 3988 | 4349.8 | 19.2 | 8.32 |
| 2008 | 837.8 | 910.2 | 2132.6 | 1.2 | 55.7 | 256.7 | 391 | 3977.2 | 4368.3 | 19.2 | 8.95 |
| 2009 | 830.2 | 949.8 | 1892.7 | 1.7 | 74.2 | 275.6 | 428.7 | 3759.5 | 4188.2 | 19.8 | 10.24 |
| 2010 | 838.9 | 1017.9 | 1994.2 | 3.1 | 95.1 | 262.3 | 440.7 | 3937.8 | 4378.4 | 19.2 | 10.06 |
| 2011 | 821.4 | 1045.3 | 1875.4 | 5.3 | 120.9 | 321.7 | 529 | 3820.5 | 4349.5 | 18.9 | 12.16 |
| 2012 | 801.1 | 1264.6 | 1643.4 | 9.2 | 141.9 | 278.5 | 512.8 | 3777.8 | 4290.7 | 18.7 | 11.95 |
| 2013 | 822 | 1158.5 | 1712.4 | 14.9 | 169.7 | 270.9 | 541.8 | 3764.6 | 4306.4 | 19.1 | 12.58 |
| 2014 | 830.6 | 1161.3 | 1712.6 | 23.1 | 183.9 | 261.5 | 560.7 | 3779.7 | 4340.4 | 19.1 | 12.92 |
| 2015 | 830.3 | 1372.6 | 1471 | 32.1 | 193 | 251 | 568.4 | 3748.7 | 4317.2 | 19.2 | 13.17 |
| 2016 | 839.9 | 1418.1 | 1354 | 46.6 | 229.4 | 269.7 | 637.1 | 3685 | 4322 | 19.4 | 14.74 |
| 2017 | 838.9 | 1337.7 | 1321.4 | 67.4 | 257.1 | 302.4 | 718.2 | 3568.3 | 4286.4 | 19.6 | 16.75 |
| 2018 | 841.3 | 1519.2 | 1272.2 | 81.2 | 275.7 | 295.5 | 743.2 | 3712.3 | 4455.4 | 18.9 | 16.68 |
| 2019 | 843.3 | 1639.8 | 1069.5 | 93.9 | 298.1 | 289.8 | 767 | 3624.7 | 4391.8 | 19.2 | 17.47 |
| 2020 | 823.1 | 1680.1 | 855.8 | 115.9 | 341.7 | 287.1 | 827.4 | 3432.7 | 4260 | 19.3 | 19.42 |
| 2021 | 811.6 | 1634.1 | 991.6 | 148.2 | 382.7 | 253.5 | 866.3 | 3508.4 | 4374.7 | 18.6 | 19.8 |
| 2022 | 803.7 | 1740.4 | 913.3 | 183.8 | 439.1 | 256.6 | 959.2 | 3536.1 | 4495.4 | 17.9 | 21.34 |
| 2023 | 808.1 | 1865.3 | 742 | 214.4 | 425.3 | 246.8 | 962.1 | 3490.5 | 4452.5 | 18.1 | 21.61 |
Gas did the heavy lifting. Coal collapsed. Nuclear sat still.
The chart that actually describes American electricity since 2000 is not a nuclear renaissance. It is a fuel swap. Natural-gas generation nearly tripled, from 634.3 TWh in 2000 to 1,865.3 TWh in 2023. Coal and peat fell from 2,129.5 TWh to 742.0 TWh. Onshore wind went from 5.7 TWh to 425.3 TWh. Solar photovoltaics went from 0.2 TWh to 214.4 TWh, still smaller than hydropower’s 246.8 TWh. IRENA’s renewable-energy share of generation rose from 8.15 percent to 21.61 percent. Nuclear, in that company, looks like the adult who stayed in the same chair while everyone else rearranged the furniture.
In 2023, among the six sources charted here, gas made more than twice as much electricity as nuclear, and nuclear still beat coal. Wind was in the same neighborhood as a diminished coal fleet. Solar was real, and still not the main event. These six sources do not add to the national total: oil, bioenergy and a few other fuels sit outside the bars. Nuclear is counted inside IRENA’s non-renewable total, which was 3,490.5 TWh in 2023 against 962.1 TWh of renewables. If the commercial grid “fails,” in other words, the country is failing a system still dominated by gas, coal and existing nuclear — not by 20-megawatt boxes on Army posts.
That is the unromantic reading of Executive Order 14420, signed the same day, which declared a national emergency over foreign-made bulk-power equipment: transformers, large generators, industrial controls, battery storage. The order is aimed at the high-voltage system, not neighborhood poles. The Army’s microreactors are a hedge against that system going dark. The White House wants the hardware that keeps it lit to be American. Whether U.S. factories can actually supply it is a payroll question, not a press release.
What actually made U.S. electricity in 2023
View exact chart values
| source | twh |
|---|---|
| Solar PV | 214.4 |
| Hydropower | 246.8 |
| Onshore wind | 425.3 |
| Coal and peat | 742 |
| Nuclear | 808.1 |
| Natural gas | 1865.3 |
The transformer shop is smaller than it was in 1990.
Bureau of Labor Statistics payrolls, seasonally adjusted, are not a count of transformers. They are a count of people. In January 1990, power, distribution and specialty transformer manufacturing employed 50,100. The series bottomed at 23,400 in June 2010. By June 2026 it had climbed back to 37,300 — a genuine rebound from the trough, and still about a quarter below the 1990 starting point. Electrical-equipment manufacturing as a whole went from 248,900 jobs in January 1990 to 167,700 in June 2026. Electric power generation employment fell from 249,000 in July 1990 to 162,100 in June 2026.
The recovery that did happen is concentrated after 2010, which is why an index with that July as 100 looks more cheerful. Transformer payrolls stood at 158.7 on that index by June 2026. Power and communication line construction — a broader bucket that also includes telecom — was at 175.6. Hydroelectric, nuclear, solar, wind, geothermal, biomass and other generation, a BLS mix that cannot isolate nuclear, was at 127.6. Fossil-fuel generation jobs were at 74.9. Data-processing and hosting, the payroll that includes the data centers now fighting local ratepayers, peaked above 200 on the same index and sat at 190.1 by July 2026. The country has been hiring people to string lines and host computers faster than it has been hiring people to stamp steel tanks.
None of this proves that foreign transformers are a sabotage risk, or that domestic plants could fill an emergency order. Jobs are not megawatts, and a payroll rebound can be overtime on a smaller shop floor. What the official books do show is that the industrial base the emergency order wants to “rebuild” is smaller than it was when George H.W. Bush was president, even after a 15-year climb off the floor.
America’s transformer plants never got back to 1990
View exact chart values
| year | transformers | elec_equip | power_gen | fossil_gen | nonfossil_gen | power_lines | data_processing | bulk_transmission | utilities |
|---|---|---|---|---|---|---|---|---|---|
| 1990 | 48.3 | 241.7 | 249 | 146.6 | 102.5 | 84.9 | 211.7 | 35.6 | 741.3 |
| 1991 | 45.5 | 229.7 | 245.6 | 144.7 | 100.9 | 75.3 | 214.4 | 35.1 | 735.8 |
| 1992 | 41.1 | 217.9 | 242.7 | 143.2 | 99.6 | 84.1 | 217.9 | 34.6 | 726.1 |
| 1993 | 41 | 214.2 | 236.8 | 139.8 | 97 | 91.3 | 223.7 | 33.8 | 712.3 |
| 1994 | 40.5 | 216.8 | 227.4 | 133.8 | 93.6 | 95 | 227.2 | 32.5 | 687.7 |
| 1995 | 41.9 | 219.2 | 219.1 | 128.6 | 90.4 | 95.5 | 243.1 | 31.5 | 664.4 |
| 1996 | 40.7 | 216.5 | 208.7 | 122.8 | 85.9 | 103 | 250.1 | 29.8 | 636.6 |
| 1997 | 38.9 | 214.5 | 203 | 119.6 | 83.4 | 108.5 | 270.3 | 29 | 620.8 |
| 1998 | 38.1 | 214.6 | 200.5 | 118.2 | 82.3 | 116.4 | 283.7 | 28.6 | 613.6 |
| 1999 | 37.3 | 209.7 | 197.9 | 116.5 | 81.3 | 124.8 | 309.3 | 28.3 | 607.8 |
| 2000 | 38.5 | 211.3 | 196.2 | 115.2 | 81 | 140.7 | 315.6 | 28.2 | 599.6 |
| 2001 | 33.9 | 194.1 | 193 | 112.9 | 80.1 | 141.9 | 317.7 | 27.4 | 598.7 |
| 2002 | 29.5 | 174.3 | 191.4 | 112.1 | 79.2 | 119.5 | 303 | 27 | 597.5 |
| 2003 | 27.3 | 158.2 | 178.5 | 105 | 73.6 | 114.5 | 280.1 | 26.4 | 574 |
| 2004 | 25.7 | 153.8 | 174.4 | 102 | 72.4 | 116.7 | 267.9 | 26.7 | 564.4 |
| 2005 | 26.8 | 150 | 168.7 | 99.4 | 69.3 | 135.2 | 260.2 | 26.6 | 553.9 |
| 2006 | 27.7 | 156.1 | 166.4 | 100.4 | 65.9 | 131.8 | 261.9 | 25.8 | 548.2 |
| 2007 | 27.6 | 156.4 | 165.8 | 100.2 | 65.6 | 141.8 | 271.3 | 25.8 | 555 |
| 2008 | 28.3 | 160 | 166.9 | 101.7 | 65.2 | 148.9 | 259.4 | 27.3 | 559.9 |
| 2009 | 25.1 | 142.2 | 168.6 | 101.6 | 66.9 | 130.4 | 247.9 | 26.1 | 558.7 |
| 2010 | 23.5 | 136.2 | 168.9 | 100.8 | 68 | 142.6 | 242.6 | 23.7 | 551.1 |
| 2011 | 24.2 | 139.4 | 167.4 | 100.5 | 66.8 | 142.7 | 245.4 | 24.3 | 552 |
| 2012 | 25.6 | 143.8 | 165.2 | 99.3 | 65.8 | 153.1 | 254.5 | 24.7 | 547.3 |
| 2013 | 25.1 | 142.8 | 165 | 100.7 | 64.2 | 161 | 271.4 | 25.5 | 552 |
| 2014 | 24.8 | 143.3 | 160 | 97.8 | 62.1 | 166.7 | 279.2 | 25.2 | 551.7 |
| 2015 | 26.1 | 144.5 | 159.6 | 96.1 | 63.6 | 167.1 | 297.6 | 26.5 | 556.3 |
| 2016 | 25.8 | 139.5 | 159 | 94.5 | 64.5 | 176.2 | 303.7 | 26.6 | 556.7 |
| 2017 | 26.6 | 137.7 | 155.2 | 90.9 | 64.3 | 186.1 | 319.7 | 26.5 | 554.8 |
| 2018 | 26 | 140.4 | 151.3 | 88.1 | 63.2 | 204 | 331.5 | 26.8 | 550.8 |
| 2019 | 27.2 | 146.3 | 147 | 83 | 64 | 212.6 | 345.1 | 26.7 | 550.2 |
| 2020 | 26.4 | 133.1 | 142.1 | 79.4 | 62.4 | 212.5 | 365.7 | 26.1 | 539.1 |
| 2021 | 26.3 | 139.2 | 141.9 | 76.9 | 65.9 | 223.1 | 405.9 | 25.1 | 545.4 |
| 2022 | 28 | 143.4 | 146.3 | 74 | 72.4 | 232.9 | 468.8 | 25.4 | 560.4 |
| 2023 | 30.2 | 146.4 | 147.5 | 74.8 | 72.7 | 240.4 | 488.6 | 27.2 | 574.1 |
| 2024 | 35 | 156.1 | 156.9 | 74.7 | 82.2 | 237.1 | 480.3 | 28.9 | 592.5 |
| 2025 | 35.6 | 161.8 | 160.1 | 74.3 | 85.8 | 250.4 | 480 | 30 | 602.6 |
| 2026 | 37.3 | 167.7 | 162.1 | 75.5 | 86.8 | 250.4 | 463.5 | 30.7 | 608.1 |
Grid jobs since 2010: transformers recovered, fossil generation did not
View exact chart values
| period | transformers | power_lines | data_processing | power_generation | fossil_generation | nonfossil_generation |
|---|---|---|---|---|---|---|
| 2010-07 | 100 | 100 | 100 | 100 | 100 | 100 |
| 2011-07 | 103 | 100.1 | 101.2 | 99.1 | 99.7 | 98.2 |
| 2012-07 | 108.9 | 107.4 | 104.9 | 97.8 | 98.5 | 96.8 |
| 2013-07 | 106.8 | 112.9 | 111.9 | 97.7 | 99.9 | 94.4 |
| 2014-07 | 105.5 | 116.9 | 115.1 | 94.7 | 97 | 91.3 |
| 2015-07 | 111.1 | 117.2 | 122.7 | 94.5 | 95.3 | 93.5 |
| 2016-07 | 109.8 | 123.6 | 125.2 | 94.1 | 93.8 | 94.9 |
| 2017-07 | 113.2 | 130.5 | 131.8 | 91.9 | 90.2 | 94.6 |
| 2018-07 | 110.6 | 143.1 | 136.6 | 89.6 | 87.4 | 92.9 |
| 2019-07 | 115.7 | 149.1 | 142.3 | 87 | 82.3 | 94.1 |
| 2020-07 | 112.3 | 149 | 150.7 | 84.1 | 78.8 | 91.8 |
| 2021-07 | 111.9 | 156.5 | 167.3 | 84 | 76.3 | 96.9 |
| 2022-07 | 119.1 | 163.3 | 193.2 | 86.6 | 73.4 | 106.5 |
| 2023-07 | 128.5 | 168.6 | 201.4 | 87.3 | 74.2 | 106.9 |
| 2024-07 | 148.9 | 166.3 | 198 | 92.9 | 74.1 | 120.9 |
| 2025-07 | 151.5 | 175.6 | 197.9 | 94.8 | 73.7 | 126.2 |
| 2026-06 | 158.7 | 175.6 | 190.1 | 96 | 74.9 | 127.6 |
The people drawing power outnumber the people making the kit.
Line up the latest levels and the mismatch is almost comic. Bulk-power transmission and control employed 30,700 people in June 2026. Transformer manufacturing, 37,300. Fossil-fuel generation, 75,500. The mixed hydro-nuclear-renewable generation group, 86,800. All electric power generation, 162,100. Electrical-equipment manufacturing, 167,700. Power and communication line construction, 250,400. Computing infrastructure, data processing, web hosting and related services, 463,500 in July 2026. Utilities as a whole, including gas and water, 608,100.
The Army’s pitch is that a base should not depend on “potentially vulnerable external grids.” Fair enough; diesel is a hassle in a shooting war. The political pitch this week is that data centers are a midterm liability because they push up bills, and that foreign kit in substations is an “unusual and extraordinary threat.” The payrolls say the United States has been much more successful at employing people to consume electricity in server halls than at employing people to build the transformers those halls require. A 20-megawatt reactor will not fix that. Neither will renaming the problem a national emergency.
Two caveats belong next to those comparisons, not in a footnote. First, IRENA’s generation series stop in 2023 in this snapshot; 2024 and 2025 output is not in the extract, so the Army is being measured against a fleet as of two years ago, not last Tuesday. Second, BLS cannot tell you how many of those 86,800 “non-fossil” generation jobs are nuclear rather than solar or hydro, and transformer employment is not the same as transformer capacity or import share. The microreactor arithmetic uses a full-year nameplate conversion, not a capacity factor. Even with those limits, the shape is stubborn: nuclear is large and flat, gas and wind did the growing, and the shops that make grid gear are still smaller than they were a generation ago.
Who actually works on the U.S. grid — and who draws the power
View exact chart values
| series | period | thousands |
|---|---|---|
| Bulk-power transmission | 2026-06 | 30.7 |
| Transformer manufacturing | 2026-06 | 37.3 |
| Fossil-fuel power generation | 2026-06 | 75.5 |
| Hydro/nuclear/renewable generation | 2026-06 | 86.8 |
| Electric power generation | 2026-06 | 162.1 |
| Electrical equipment manufacturing | 2026-06 | 167.7 |
| Power and communication line construction | 2026-06 | 250.4 |
| Data processing and hosting | 2026-07 | 463.5 |
| Utilities (all) | 2026-07 | 608.1 |
Sources and methods
This is retrospective enrichment using pinned catalogue snapshots compiled on 24 August 2026, not a reconstruction of what was knowable on the 27 August 2026 edition date. Later revisions may be present in the snapshots.
IRENA country generation and renewable-share series for ‘United States of America (the)’ were extracted for 2000-01-01 through 2025-12-31. Realized observations run annually, dated 1 January, for 2000–2023 (24 years). Those dates are treated as calendar-year totals, not as January-only generation. IRENA capacity extracts for the same geography returned no rows and were not used. Nuclear is inside IRENA’s non-renewable total. The wind series is onshore only. Oil, bioenergy and other fuels are omitted from the six-source mix chart; they are inside the renewable or non-renewable totals.
BLS Current Employment Statistics series are national, monthly and seasonally adjusted, in thousands of jobs. Extracts cover 1990-01 through 2026-07. Most CES series used here end in June 2026; data processing and utilities include July 2026. July snapshots are used for annual job history through 2025; 2026 annual points use the latest month in that year. The hydro/nuclear/solar/wind/geothermal/biomass CES series cannot isolate nuclear employment. Power-and-communication-line construction includes telecom structures. Utilities include electric, gas and water. Payrolls are not output, import share or physical transformer capacity.
The 175.2 GWh figure is 20 MW × 8,760 hours ÷ 1,000, a nameplate unit conversion, not an assumed capacity factor or a projection of Army output. The 3,504 GWh figure applies the same conversion to 400 MW (20 reactors at 20 MW). Missing observations were not treated as zero. No causal claim is made that tariffs, the emergency order or data centers caused the payroll changes.
Research completed 2026-09-11, for the August 27, 2026 news edition. This is retrospective analysis, not a reconstruction of information available that day.