Abstract energy harvesting technique with indoor light condition in low light intensity is very challenging. It isthe reason why optimizing system structure and reduction of power loss is needed in energy harvester design. Inthis case an energy harvester can afford plentiful energy to the wireless sensor network nodes. In this paper, wepresent a solar energy management circuit for low light intensity energy harvesting, which includes maximumpower point (MPP) circuit, energy storage element, discharging circuit and DC-DC boost converter. The simulationresults show that this energy management circuit can harvest energy from indoor light condition and get stableoutput voltage for wireless sensor nodes.
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