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Today, we began to create a solar oven using the dish and tinfoil tape. This creates a reflective surface and heats up quickly, getting hot enough to light paper on fire eventually. We also used mirrors to magnify the sunlight and create molten rock.
Storage Is different prices for different types. Lead-acid batteries is $300 per kWh to store, and lithium is predicted to be $150 soon with new invention. Lithium batteries are the best. They can be taken down to 95% and last 20 years while led-acid batteries can only be taken down to 50% and last two years. The school uses lithium, but we pay $1000 per kWh. This is extremely expensive and they are only able to store about $40 worth of solar energy from the (student union) solar trees every night.
~Energy
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