What 115 is

This is the biggest part of the quantum battery: the element of Project 05, made Magnum-scale (Project 113) and raised into skyscraper form. Projects 48 (Private Energy Farms) and 114 (Summ Engine) are the same machine at two sizes. 48 is the engineered body — the cell, the optics, the heat recovery, the honest physics. 114 is that body stacked up, not out, into a tower. Project 115 is the one line underneath both, and it runs from a chip to a tower without changing the engine.

The engine is synthetic electro-photosynthesis: an LED wall focused through multiplied, colored lenses onto a green power-crystal that sends and receives. There is no sun and no wind — the light is synthetic, driven by input electricity. What makes it worth building is not free energy. It is two honest multipliers: optical concentration and electro-Peltier heat recycling, which together get more useful work out of each watt than a conventional cell does, bounded at every step by the first law.

1. The root — deposition #957 (2017)

The idea is dated. Christopher Gabriel Brown set it down in 2017 in the Invent Depositions (ISBN 978-1-979767897). The line #950–#960, in his words:

Two 2019 lines name the economics and the chip form: #1655–#1658 “Solar Recycle Center” — “reflective focus and light combined, energy spent versus energy obtained… a study of refraction… less to make more… artificial solar LED recycle amplified” (a ratio study, not a free-energy claim); and #1609–#1616 — the same voxel architecture at chip scale. Foundational equation a + m² = E (#190/#191); derivations in Project 27.

The honest reading: “send and receive” is a photosystem that receives synthetic light and re-emits what it does not use — not a loop that creates energy. “Less to make more” is efficiency and recycling, not perpetual motion.

2. The one engine — the green-crystal power-IC cell

The IP is the cell, and it is the same cell at every scale. It is engineered like a power chip, not a solar panel: the bottleneck is the output side (busbar I²R, electromigration, cooling), not absorption. A multi-junction photosystem stack — a PS-II analog (GaAs + green chromophore, 1.42 eV) over a PS-I analog (1.10 eV), with UV (InGaP) and IR (Ge) absorbers for the two LED bands, a send/receive re-emit layer (dep. #960), heavy Cu/Ag metallization, microfluidic cooling, and the electro-Peltier recovery layer beneath.

Building-scale design targets: V_OC = 2.50 V, J = 50 A/cm², P = 125 W/cm², single-pass η = 0.55 — just above the NREL 6-junction record (0.476), and labeled a design target, not a demonstrated result.

3. The two honest multipliers

This is why the line is worth building, and why it never breaks the first law.

3.1 Optical concentration — intensity, not energy

Cheap standard parts in series: a TIR collimator per LED, a Fresnel/aspheric condenser, and a Fabry-Perot cavity (the reflective tunnel), finesse F = π√R / (1 − R).

Stacked with the lenses, the cell sees up to ~10⁶× the raw LED intensity — 600–3,000 synthetic “suns.” But the cavity multiplies intensity, not throughput. Total energy per second is still capped by total power in. The benefit is engineering, not energy creation.

3.2 Electro-Peltier heat recycling — recover what others waste

The cell's waste heat is a second source. A Peltier / thermoelectric back-layer recovers part as electricity: η_combined = η_PV + η_TE×(1−η_PV).

The same layer runs the cold side in reverse (the Negative Microwave plant, Project 49). Nothing exceeds Carnot.

3.3 The first-law bound, stated out loud

Anything claiming more violates the first law. Concentration makes the cell efficient; electro-Peltier recycling claws back waste; neither invents energy. “Less to make more” means more useful output per watt in — not output without input.

4. Four scales, one architecture

The same cell, the same synthetic electro-photosynthesis, the same electro-Peltier recycle, packaged four ways:

The source is always the LED (synthetic) — concentrated by lens and cavity, converted by the one cell, recycled by electro-Peltier. The building needs no heliostat field of ambient sun; the reflective tunnel concentrates the tower's own synthetic light, exactly as 114 already does. That is the reconciliation of 48 and 114: one synthetic engine, every scale.

5. The honest frame — the two faces and the gate

One number runs it: g, the loop gain per cycle (the LED's efficiency × the cavity's × the cell's × the pump's, times one plus the share of heat electro-Peltier returns).

• Face one — the design as written (Project 05's claim, g > 1): the loop carries its loads and exports a surplus. This is a claim to be measured, never a result in hand.
• Face two — every measurement on record (g < 1): the loop is a toll, not a source. The chips carry the loads for a while on stored charge, then the LEDs draw electricity from outside — the grid, or any generator. Concentration and electro-Peltier recycling make the toll small. The light stays synthetic either way.
• The gate between them is one measurement: the loop gain of a quantum-battery die under its own LED charging, in silicon. Everything else is engineering that already exists somewhere.

The package shows both faces and hides neither. No sun. No wind. Nothing built or measured. Design values only.

6. Provenance & terms

• Root: Invent Depositions (C. G. Brown, 2017, ISBN 978-1-979767897), #950–#960 and #1655–#1658; equation #190/#191; derivations in Project 27.
• Bodies: Project 48 (Private Energy Farms) — the engineered cell, optics, Peltier recovery, honest physics; Project 114 (Summ Engine) — the tower/campus packaging and the two-face arithmetic.
• Terms: U.S. patent-pending where noted. Offered non-exclusively, to everyone, on equal terms — not a monopoly, an open race.