Insights

What we learn verifying. In writing.

Real cases of documents, manufacturers and bills. Most end with a question you can ask tomorrow.

  1. A record €195/MWh spread: from the pool or from your tariff?

    August's spread broke the all-time record. But the pool spread and your contract spread are two different worlds, and only one flows through your bill.

  2. You installed a battery. Have you told your insurer?

    It's the question nobody asks, not the one selling the battery, not the one installing it. And it can cost you the entire payout.

  3. A 5-year warranty “extendable for a fee”: 10, confirmed in writing

    A manufacturer told us the warranty was 5 years, extendable for a fee. Their official documents said otherwise. Three times.

  4. More batteries don't mean more savings: a real 3.0TD tariff

    “Add more batteries and you'll save more.” It's the most expensive sentence in Spanish energy storage. And it's false.

  5. 8,000 cycles or 6,000: cell-level or system-level?

    Same battery, same manufacturer, two thousand cycles of difference between one document and another. Both numbers are true, but only one describes what you buy.

  6. “We are Tier 1”: Tier 1 of what, exactly?

    It's the most repeated phrase in the energy sector, and almost nobody knows what it actually means. It's used for three different things and only one should matter to you.