Guides: energy communities and electricity
Five topics to understand, choose and act, whether you join an energy community or run one.
Three topics speak first to households: the electricity bill, solar panels and their surplus, and energy communities, whether you want to join one or start one. The other two are mainly for project leaders and community managers: the allocation key, then the pricing and invoicing of shared electricity. Each topic opens with an overview and lists its guides.
Energy communities: joining, creating, running
Understand the framework, join or create an energy community in Wallonia, then keep it running day to day.
- Energy communities in Europe: RED II and IEMD
- Energy communities in Belgium: CER, CEC, CEL
- Energy self-consumption in Belgium
- Create an energy community in Wallonia
- Join an energy community in Wallonia
- Engaging energy community members
- Energy community: CWaPE documents and deadlines
Allocation key: understand, choose, test
What each region accepts, how to choose a family of keys, then how to test it on your own data.
- Allocation key in Belgium: the 3 regions
- Automatic allocation key generation
- Simulate an allocation key: test your scenarios
Pricing and invoicing in an energy community
Set a defensible price for shared kWh, then know who invoices what, with which VAT and which documents.
Explore this topic (2 guides)Your electricity bill: understand and reduce it
Why it stays high, how to read it, which levers to pull and what “green” offers are really worth.
- Why your electricity bill stays high in Belgium
- Read your Belgian electricity bill line by line
- Reduce your electricity bill: Wallonia 2026
- Which electricity tariff to choose in Belgium?
- Cheaper electricity without switching supplier
- Reduce your electricity bill: energy communities
- Energy poverty in Wallonia: available support
- Green electricity in Belgium: really green?
- Local electricity: the short-circuit guide
Solar panels: profitability and surplus
Decide whether to install based on your situation, then choose what to do with the electricity you do not use.
- Solar panels 2026: still worth it in Wallonia?
- Solar panels: nobody home during the day
- Renting: the no-roof guide to solar
- Solar surplus: the 5 options compared
- Home battery: the price and the alternative