The best place to put a solar panel in the North Hemisphere is on a south-facing roof with minimal shading, as it allows for maximum sunlight exposure throughout the day. This orientation optimizes energy production and efficiency.

However, if a roof is not suitable, solar panels like the Anker Solar Panel 625 can also be installed on the windows, ground or other structures, as long as they receive ample sunlight and are properly positioned for optimal performance. However, remember to avoid obstructions such as trees, neighboring buildings, or other landscape features that may affect the efficiency of your solar panels.

Yes, portable solar panels can work through windows, but their efficiency is significantly reduced due to the window glass absorbing and reflecting some of the sunlight. Moreover, the type of glass on the window also plays a role in the panel's efficiency, and tinted windows can decrease the amount of solar energy that reaches the panel, further reducing its performance.

Thus, it is generally recommended to use them outdoors in direct sunlight for maximum efficiency. Moreover, if you do need to use solar panels through windows, in order to counter the reduced efficiency, it might be in your best interest to invest in a portable power station to store the energy for later uninterrupted use.

Solar panels for windows offer several benefits, including:

1. Energy efficiency: Windows with solar panels absorb sunlight and convert it into electricity, reducing your reliance on grid power and lowering energy bills.  
2. Space-saving: Solar panels on windows utilize otherwise unused surface areas, making them an ideal solution for urban environments or buildings with limited roof space.  
3. Aesthetics: Solar panels windows integrate seamlessly into the building's design, adding a modern and eco-friendly touch without compromising the architectural style.  
4. Environmental benefits: By harnessing renewable energy, solar panel window blinds and other window-integrated solar technologies contribute to the reduction of greenhouse gas emissions and support a more sustainable future.

Yes, a solar light can recharge through a window, but the charging efficiency will be decreased as the glass filters out some of the sun's radiation. To maximize the charging efficiency, it's recommended to place the solar light outdoors in direct sunlight, use purpose-built solar panels for windows like the Anker 531 Solar Panel, or recharge through indoor solar generators. 

Yes, a solar panel can work through clear plastic, but its efficiency will be diminished compared to direct exposure to sunlight. The plastic may absorb or reflect some of the sun's rays, causing the solar panel to capture less energy.

Additionally, plastic can become discolored or opaque over time due to sun exposure and weather conditions, further decreasing the efficiency of the solar panel. For the best performance, it's recommended to place the solar panel in direct sunlight without any obstructions or barriers.