Battery for business: cutting the power term and the penalties
Why a battery pays off faster in a small business than at home: it shaves the peak, cuts contracted power and avoids excess-power penalties.
Solar energy, self-consumption, technology and practical tips to make the most of your installation.
Why a battery pays off faster in a small business than at home: it shaves the peak, cuts contracted power and avoids excess-power penalties.
Why the power grid needs ever more flexibility and how a home with a battery shifts from a passive consumer into an active part of the system.
Hour-by-hour calculation for a 10-home building with a 32 kWp pergola: savings, payback and how much battery is needed for three days without power.
We read the warranties from Tesla, BYD, Huawei, LG, SolarEdge, Pylontech and sonnen. All promise 10 years, but guarantee between 60% and 80% capacity.
The 28 April 2025 blackout: solar panels don't mean power. What you need to ride it out (backup output, critical-loads panel, reserve) and how to size it.
Electric boating in 2026: why LiFePO4 has won on board (weight, cycles, safety) and what to watch when switching from lead: alternator, BMS and salt.
Fan coils complete a heat pump: efficient low-temperature heating and summer cooling from the same machine. Types, ballpark prices and key details.
Collective self-consumption in Spain 2026: the radius extended to 5 km, the manager role and allocation coefficients. Why the internal network pays more.
Samsung's two 5000 mAh 21700 cells compared. When to pick the 50S (power, 35 A) and when the 50G (energy and cycle life) for DIY, e-bike or solar builds.
Technical analysis of sodium-ion batteries: abundant materials, up to 20,000 cycles and operational safety. Rigorous comparison with LiFePO4. June 2026.
Practical 2026 guide to choosing a solar battery: capacity (15/30/45/60 kWh), LiFePO4 chemistry, inverter power and when it really pays off, by profile.
A solar battery delivers three stackable income sources: tariff savings, hourly arbitrage and grid services. Real numbers for homes and small businesses.
What one kWh really costs at home with solar and a LiFePO4 battery: 3.20 c€ direct and 7.32 c€ through the battery, on a real 5.2 kWp + 30 kWh installation.
The EU digital battery passport is mandatory from February 2027. What it requires, who answers for it, and why your battery should already track its health.
Most solar batteries don't need replacing when you think. Real warning signs, LiFePO4 lifespan vs older chemistries, and the data that tells you when.