◉ Available · Amsterdam ↔ PhillyEnergy · Real Estate · Hospitality

I build the systemsthat make operatorsmore money.

Juan Diaz LLC is the holding I use to ship revenue engines for operators in energy, real estate, hospitality and adjacent industries — as my own products, or as a partner for yours. Construction-trained. Operator-built. One founder, five phases, zero fluff.

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Revenue engines Energy · Real estate · Hospitality Construction-trained Five phases Blueprint before build Shipped, not pitched Revenue engines Energy · Real estate · Hospitality Construction-trained Five phases Blueprint before build Shipped, not pitched
◉ 00 — Story

Most businesses don't have revenue
problems. They have blueprint problems.

I grew up between two worlds — the Netherlands and a family that taught me another one. My people called me el cazador. The hunter. Patient. Specific about what I'm after.

I trained as a construction manager — how to plan impossible builds, sequence the moves, and ship without breaking the budget or the people. What nobody tells you is that the discipline transfers everywhere. Every business is a construction project.

Most operators I meet aren't short on ambition. They're short on blueprint. Revenue leaks in the same five places, every time: no survey, no phasing, no commissioning, no control room, no honest numbers. So the business runs on hope instead of instruments.

I started Juan Diaz LLC as the holding for the opposite of that. I ship revenue engines across energy, real estate, hospitality and adjacent industries — sometimes as my own products (Voltafy, Performance Tracker, Help Mij Besparen, Salderingsregeling 2027), sometimes as a partner for yours. Same five phases every time.

The bet is simple: the next decade of great software gets built by operators, for operators. I'd rather be one of them than sell to them — and bring a few along while I'm at it.

Juan
Juan Stefan DiazSole founder · Juan Diaz LLC · Construction-trained operator
◉ The deadline
Salderingsregeling ends January 1, 2027 — and the Dutch energy map changes overnight.
Live counter
Days
Hours
Minutes
Seconds
— Ticking live from your browser · target 2027-01-01 00:00 CET · this is the window we're building in.
◉ 01 — Where I work

Every sector with operators
and a P&L.

Different industries, same leaks. I focus where the operational complexity is highest and the software is weakest — that's where the revenue is hiding.

◉ 02 — How I work

Construction-trained.
Every build in five phases.

The same discipline that keeps a building on time and on budget is the one I apply to your revenue engine. No phase skipped, no number unverified.

01 / Survey
Walk the site.

See what's actually going on before touching anything. Find the leaks, the workarounds, the tribal knowledge. Every real plan starts here.

02 / Blueprint
Draw the plan.

Sequence the moves. Every phase has a number attached. No vague "strategy deck" — a build plan a contractor could read.

03 / Build
Ship the systems.

Dashboards, automations, products, whole engines. Built to run at 3am on bad wifi, not just in the demo.

04 / Commission
Stress- test.

Verify every number. Run the edges. Nothing gets called "live" until the system is honest under load.

05 / Operate
Stay in the control room.

Monitor, tune, improve weekly. A revenue engine isn't a project — it's a living system. I stick around.

◉ Transmission 001— Building for 2027 / Amsterdam → Everywhere
Honest energy tools Built by operators Shipped, not pitched Honest energy tools Built by operators Shipped, not pitched
Chapter 01 / 03
◉ Chapter 01 — The Signal

Every real tool starts with someone listening to the field.

Long before Voltafy, I was the one running the dashboards — at 3am, on bad wifi, watching numbers lie about what was really happening on a roof somewhere in Zwolle. That's where the hunt started.

— 2021–2023 · the early years
◉ Chapter 02 — The Build

Stop complaining. Build what you wish existed.

Four products. One standard. No wasted screen. Voltafy as the platform. Performance Tracker for owners who want the real number. Help Mij Besparen for households drowning in invoices. Salderingsregeling 2027 as the public guide.

— 2024–2026 · Juan Diaz LLC
◉ Chapter 03 — The Bet

Four million Dutch rooftops are about to need new software.

The salderingsregeling ends January 1, 2027. The rules change, the math changes, and every household with solar wakes up on a different grid. I intend to be the one who shipped what they need first — and shipped it honestly.

— 2027 and after · the reason all of this exists
◉ 03 — Ventures

The playbook,
in motion.

Live products under the holding — each one the five-phase playbook applied to a real sector. Proof, not pitch. Visit any of them.

07
Years shipping
0+
Live products
5
Phases every build
0027
The deadline
◉ 04 — Signals

Field notes,
build logs.

Short essays on designing operator tools, shipping dashboards that survive real environments, and running small studios at speed.

◉ Work with me

Ready to find the revenue you're leaving on the table?

One founder. Five phases. Zero fluff. The blueprint call is free and blunt. If I can help, I will. If I can't, I'll tell you who can — and send you on your way.

◐ Monthly, blunt, useful. No spam, ever.
◉ 05 — Direct line
juan@juandiazllc.com
◉ Book a call
LiveAMS Grid stable2027 · dv1.0
◐ Sound off⌘K