April 11, 2026 · 13 min read
I started in Italy with a 3.3 kW meter that tripped every time I turned on the induction hob. I moved to Spain thinking the problem was behind me. I was wrong. Three real stories from 2023-2025 where the grid wasn't the answer: a house with no power because of a previous owner's debt, a factory the utility wanted to charge €140,000 to upgrade, and a house stuck on perpetual construction power under threat from Iberdrola. In every case, the solution arrived before the utility did.
April 4, 2026 · 11 min read
KNX should be Europe's open building automation standard. In practice, each manufacturer implements their own version, parts become impossible to find, and integrators blame each other. A real case from a shoe factory in Elche: two years of chaos, ovens shutting down on their own, and how we fixed it with Shelly Pro + Raspberry Pi for less than one-tenth of the original cost.
March 28, 2026 · 12 min read
Big consultancies charge hundreds of thousands of euros to diagnose problems a hands-on technician can fix in an afternoon. Three real cases: a botched SAP migration with a forgotten backup, a security audit that ignored the obvious, and an industrial machinery integration that was “impossible”. Real senior IT consulting gets its hands dirty.
March 21, 2026 · 12 min read
During Italy's Superbonus 110% years I learned something marketing courses don't teach: people don't buy solar panels. They buy peace of mind, certainty and arithmetic. Ten years between Italy and Spain doing lead generation for the photovoltaic sector taught me what actually works and what's smoke. If you're about to spend budget on Google Ads or hire a marketing agency for your solar company, read this first.
March 14, 2026 · 12 min read
In the cloud era, someone recently asked me why I still list CCIE in my professional signature. The answer isn't nostalgia: it's that when AWS goes down, when an Azure migration gets stuck, when an IPsec VPN between two sites won't come up, the only engineer who shows up and fixes it is the one who learned at twenty-two how OSPF worked over a broken Frame Relay interface. Three real stories.
March 7, 2026 · 13 min read
For almost two decades I was a consultant. I charged by the hour, the client paid, I solved the problem, and the next day I moved on to another client. Founding A Todo Sol in 2020 changed my brain completely. Suddenly, not invoicing for a month meant several families couldn't pay their rent. This is what I learned moving from consultant to founder when I already knew how to do everything.