Hello,
I am new to this forum but not new to arduino and electronics. Working in the PV business Istarted a series of posts in my blog at http://heliosoph.mit-links.info/ about how to power an arduino and peripherals using a stanalone PV system. The basic idea is that the design rules for standalone PV systems apply for a wide range of power and electricity needs. So this can also be done for a small microcontroller with some devices connected do it. The system has a solar panel, a battery and a charge regulator (and, of course, some wires to connect the components). The posts also tell you about dimensioning the components to have a well-working system without spending a lot of money in oversized components. If interested look at the following posts:
[Basics: Which components we need and how the system works
[Load: How to determine and optimize electricity consumption of your application
[Battery characteristics: What the battery does and what is important to us
[Battery selection: Which type and size to choose
[PV module basics: Electrical characteristics of the solar panel
[PV module dimensioning: Determining the best module size
[Charge regulator: The thing that keeps it all together
[Building a real sysem: About safety, wiring and more
This should give you basic information when you plan to start a solar-powered arduino project.
Enjoy
heliosoph](Solar power for your arduino - building a system - heliosoph)](Solar power for your arduino - charge regulator - heliosoph)](Solar power for your arduino - PV module dimensioning - heliosoph)](Solar power for your arduino - PV module basics - heliosoph)](Solar power for your arduino - battery selection - heliosoph)](Solar power for your arduino - battery characteristics - heliosoph)](Solar power for your arduino - load - heliosoph)](Solar power for your arduino - basics - heliosoph)