> This system consists of two 50W solar panels on the balcony, a 100 Ah lead-acid battery and a 10A charge controller. The energy generated is used for lighting, the music system, and charging laptops and other electronic devices, among other things. The initial financial investment was 340 euros: 120 euros for the solar panels, 170 euros for the battery and 50 euros for the charge controller.
There’s the problem - the expensive lead acid battery, which is not the best technology to fit the application.
I get the overall point about load shifting to suit solar output, but the point about storage being prohibitively expensive falls flat because they didn’t use the right battery.
Deep cycle lead acid batteries are the cheaper option for the first 1-3 years, but LiFePo4 has more discharge cycles and a longer lifespan (500-1000 cycles vs 3000-5000+).
There’s the problem - the expensive lead acid battery, which is not the best technology to fit the application.
I get the overall point about load shifting to suit solar output, but the point about storage being prohibitively expensive falls flat because they didn’t use the right battery.