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GREENHESS BLOG

Energy, metering and real-world experience

News, guides and development stories for more transparent energy use.

PZIOT-E02 consumption meter – with native hmke.app support

PZIOT-E02 consumption meter – with native hmke.app support

▣ 2025-10-16 ◉ 1766 views

The Swiss army knife of phase measurement The PZIOT-E02 can provide great help in two situations: 1. If you don’t have an electricity meter with a P1 port In this case, the PZIOT-E02 functions as a standalone phase meter. It can measure voltage, current, powe…

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Discover our new ADA products!

Discover our new ADA products!

▣ 2025-10-16 ◉ 783 views

The ADA P1 Meter is already familiar to many of you: this small smart device can read 36 different consumption and production data points through the P1 port and transmit them to MQTT or even to our own system. Now, however, the family is expanding with a few…

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Periodic Calculation and Feed-in Tolerance

Periodic Calculation and Feed-in Tolerance

▣ 2025-10-16 ◉ 870 views

The hmke.app system has been expanded with a new, practical feature that helps users who monitor the operation of their solar panel system based on annual billing. The new dashboard card consists of two separate parts, which together provide even more accurat…

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Increasingly popular, not only among HMKE users

Increasingly popular, not only among HMKE users

▣ 2025-10-16 ◉ 789 views

The ADA P1 Meter is becoming an indispensable device in more and more Hungarian households, especially among owners of household-scale small power plants (HMKE). However, it is not only used by those who already have solar systems, but also by those planning…

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ADA P1 Meter • Smart meter for electricity meters

ADA P1 Meter • Smart meter for electricity meters

▣ 2025-10-16 ◉ 8134 views

This device is a powerful microcontroller-based smart meter, specifically designed for collecting and transmitting data from smart electricity meters. The device connects directly to the smart electricity meter and can collect consumption, feed-in, tariff, an…

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