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2 months agoAFAIK most of the small scale solar systems designed for balconies and rentals aren’t intended to connect to the grid. They are designed to deliver power downstream only to a few DC appliances, falling back to a mains power adapter when there isn’t enough sunlight or battery power.
AFAIK (I’m not a botanist) it’s true of many larger trees that they use more oxygen than they produce and emit more CO2 than they consume. It’s the biosphere that the large trees support that does a lot of the carbon sinking - mosses, ferns, vines, etc.
As a rule of thumb, the greater the ratio of woody mass to leafy mass the more the ratio tilts away from being a carbon sink, as the whole lifeform has to undergo aerobic respiration but only the leaves participate in photosynthesis.