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KlimaGrid

The KlimaGrid blog

Tips, analysis and news on solar energy and the Klimabonus in Luxembourg.

Klimabonus

Klimabonus 2026: everything that changes for households

The new pre-financing, revised amounts and eligibility conditions: here is the essence of the 2026 Klimabonus.

January 15, 2026 · 5 min read

Guide

How to choose a registered installer in Luxembourg

Registration, warranties, references: the criteria that make the difference for a successful solar installation.

January 8, 2026 · 6 min read

Technical

Self-consumption vs selling back: what to choose in 2026?

Feed-in tariff or self-consumption with a battery: we compare both strategies with the numbers.

January 2, 2026 · 7 min read

Guide

Solar installation prices in Luxembourg in 2026

Full breakdown: €1,500–€2,200/kWp gross, Klimabonus deducted, battery and premium configurations. All the real market numbers.

February 12, 2026 · 6 min read

Guide

Solar profitability in Luxembourg: what you actually save

Real production (~950 kWh/kWp), self-consumption tariff, surplus resale: the complete formula for net 25-year returns.

February 20, 2026 · 7 min read

Technical

Solar payback period: 7 to 13 years in 2026

How Klimabonus pre-financing, self-consumption, and rising electricity prices have shortened payback vs 10 years ago.

March 4, 2026 · 5 min read

Technical

Heat pump vs gas boiler: the 15-year comparison

Total cost, CO₂ impact, thermal comfort and regulatory pressure: why heat pumps take the lead in 2026.

March 18, 2026 · 7 min read

Guide

Home EV charging in Luxembourg: 2026 buying guide

Power, smart load management, €1,200 Klimabonus: everything to choose and install the right charger for your EV.

April 2, 2026 · 5 min read

Technical

Solar storage battery: the 2026 technical guide

Capacity, LFP vs lithium-ion chemistry, AC/DC coupling, and the no-concession economic calculation to decide if a battery pays off.

April 15, 2026 · 6 min read

Guide

Registered solar installers in Luxembourg: how to verify

In Luxembourg, the equivalent of France's RGE label is the Ministry of the Economy registration. The 3 questions to ask before signing.

May 6, 2026 · 4 min read