According to another aspect of the invention, in a preferred embodiment, an energy harvesting system has at least one power source and at least one power source monitor for monitoring a power parameter at the power source. At least one load is operably coupled to the power source and to a load monitor for monitoring a power parameter at the load. A control module uses the monitored parameters to control power supplied to the load by the power source.

According to yet another aspect of the invention, a preferred embodiment of an energy harvesting system includes a plurality of power sources each operably coupled to a corresponding circuit facilitating the control of power supplied to the load by each of the power sources.

The invention has advantages including but not limited to providing one or more of the following features, improved intermittent-source, e.g., solar, energy harvesting, increased energy harvesting efficiency, and reduced costs. These and other advantages, features, and benefits of the invention can be understood by one of ordinary skill in the arts upon careful consideration of the detailed description of representative embodiments of the invention in connection with the accompanying drawings.