Residential UPAC

With Decree - Law no. 153/2014, it became legally possible for individuals or entities to produce their own energy, being connected to the electricity grid.

UPAC - Self-consumption production unit

The energy produced is consumed locally, being the produced energy saved from the public grid. With the extraordinary price reduction of solar photovoltaic technology in the last 5 years, this form of energy has become cheaper than the public grid. Therefore, in addition to the emissions of pollutants and CO2 avoided, the time of return is extremely low, generally less than 5 years,

In the graphic, can observe an example of savings (with a well-sized self-consumption system with little surplus).

All the energy produced is injected into the home network. For example, if consumptions are 1000w, and the solar system is producing 700w, it will only consume 300w of the grid, a considerable saving.

We have small ready-to-assemble kits, and we also dimension and install larger systems for bigger consumption.

Self-consumption system consists of:

Photovoltaic modules: produce DC energy

Grid Inverter: converts DC to AC single or three-phase

Production meter: required for more than 1500w
UPAC with accumulation

Self-consumption systems with accumulation, compared to normal UPAC systems, add batteries with the capacity to store the surplus for later, when solar production is not enough, or night time.

For a better explanation of the operation of these systems, and the solutions we propose, please visit our page on the topic:

UPAC industrial / companies

Self-consumption is also available for large consumption from small to large companies.

Due to the size of the installations, and the consumption, usually constant and daytime, these systems become extremely advantageous, with times of return usually less than 4 years.

Mr. Entrepreneur, do not hesitate to contact us, with no commitment to a budget without any commitment!


Transição Simples
Armazém B, Rua Principal S/N
3240-408 Junqueira - Ansião
+351 236550396


TransiçãoSimples ®, 2011-2017

More than 6years of experience to serve you better. We design and install grid-tie, hybrid, off-grid solar and solar pumps, based on your needs. Always with the best materials available.

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