RES

Green encyclopedia

Non-renewable energy sources – what are they, what disadvantages do they have, and do they have a future?

Non-renewable, or so-called traditional, energy sources have for decades been the foundation of energy systems around the world. Coal, crude oil, and natural gas are resources that, despite the growing popularity of alternative energy sources, still play a key role in the energy systems of many countries. This situation makes the energy transition, which will help free the global economy from fossil fuels, increasingly urgent. So, what is worth knowing about non-renewable energy sources?

Green news

Reo.pl partners with Envirly: renewable energy, carbon footprint calculation and reporting in one place

Reo.pl, a platform trading exclusively in green energy, has entered into a strategic partnership with Envirly, a provider of an advanced tool for measuring and reporting carbon footprint. The joint initiative aims to comprehensively support clients in the energy transition, implementation of sustainability policies, and compliance with reporting requirements set by EU regulations.

Business and law

Who is a Virtual Prosumer? Settlement Rules in 2025

Using a photovoltaic installation grants the user the status of a prosumer. However, the current provisions of the Renewable Energy Sources Act distinguish between different types of renewable energy prosumers. As of July 2, 2025, in addition to individual, tenant, and collective prosumers, the virtual prosumer model also comes into effect. Who exactly are these users of photovoltaic systems, and what sets them apart from a "regular" prosumer?

Business and law

Green Marketing for Companies – How to Implement It?

Environmental protection, conscious care for preserving its values and biodiversity, promoting pro-environmental attitudes, and optimizing business activities are the key principles of green marketing. When companies define areas for development and create strategic and operational plans, their implementation can help eliminate the destructive impact on the planet. At this stage, questions and doubts often arise - What exactly is green marketing?

Green news

EUDR – What Is the Deforestation Regulation About?

At the end of December, the EUDR regulation on deforestation will come into force. Initially, it will apply only to large and medium-sized enterprises, but over time its scope will also cover smaller companies. What changes should businesses prepare for? What does the deforestation regulation change?

Eco-advice

How to Clean Solar Panels? A Step-by-Step Guide

A photovoltaic installation makes it possible to generate green electricity directly from solar radiation. In this way, both consumers and businesses can achieve energy independence and significantly reduce their electricity bills. Is regular cleaning of solar panels necessary to maintain their full efficiency? We answer!

Eco-advice

Thermal insulation – what it is and when to do it

Thermal insulation is a way to save money and ensure thermal comfort. Check when it’s worth planning and what benefits it provides.

Green encyclopedia

What are oxygen trees and why is it worth planting them?

The fight against air pollution can take many forms, including planting vegetation that absorbs carbon dioxide and produces oxygen through the process of photosynthesis. In recent years, so-called OxyTrees, or oxygen trees, have been gaining popularity. What are they, and how can oxygen trees be used in urban environments as well as by large companies?

Eco-advice

How is hydrogen produced? Electrolysis – what is it and how does it work?

Ecological hydrogen as an energy source is one of the directions in the development of renewable energy. However, to enable its large-scale use, it is necessary to apply an easy, efficient, and inexpensive method of its production. Currently, green hydrogen can be obtained in several ways – through steam reforming of natural gas, photosynthesis, fermentation, and the electrochemical method, that is, electrolysis. Here we explain what hydrogen electrolysis involves.

Eco-advice

Green certificates in the office – how to obtain them and what benefits they bring to a company

Eco-friendly construction is becoming increasingly popular among businesses. Having green certificates in the office is not only a way to meet ESG requirements but also proof that a company is a conscious and responsible market participant. So how can you apply for green certificates?

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