Photovoltaic panels have high current but generate electricity very slowly

If your panels aren't producing any electricity when you'd expect them to, it's most likely a fault with the inverter or problem with the wiring. Occasionally the generation meter might fail. [pdf]
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Reasons for high failure rate of energy storage system

What Are The Reasons For The Failure Of Energy Storage Businesses?Inadequate Market Demand Analysis . Insufficient Funding/Capital Resources . Technological Limitations/Reliability Issues . Regulatory Hurdles and Policy Uncertainties . Lack of Strategic Partnerships . High Manufacturing/Production Costs . [pdf]
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How much tilt should photovoltaic panels have to be to be effective

To optimize performance, tilt your panels at an angle that is 10-15 degrees less than your latitude. For example, if you live at a latitude of 40 degrees, set your panels at about 25-30 degrees. [pdf]

What is the name of the lamp that charges the photovoltaic panel

A solar lamp, also known as a solar light or solar lantern, is a lighting system composed of an , , , and there may also be an . The lamp operates on electricity from , charged through the use of a solar photovoltaic panel. Solar-powered household lighting can replace other light sources like candles or [pdf]