Thanks to the genius Elon Musk, the price of batteries has also reached a critical point.

Thanks to the genius Elon Musk, the price of storage batteries has also exceeded a critical point. There are no plans for it to be released in Japan yet, but once it is released, it will be the first product whose price has fallen to a point where it can be said that "it will not hurt to use it." (Strictly speaking, I don't think it would be that expensive to use an electric vehicle like the Leaf as a home storage battery. I think it is the first product for home use that has reached a cost-effective level.)
Of course, insulation, airtightness, gaining solar radiation in winter, and blocking solar radiation in summer are by far the highest priorities, but for those who have exhausted all of those and are still aiming higher, for those looking to prepare for disasters such as a possible earthquake directly beneath the capital, an eruption of Mt. Fuji, or an earthquake along the Nankai Trough, or for those who have installed solar panels for almost 10 years and for whom the purchase price has dropped and who would prefer to use them for their own consumption, it is probably best to buy as soon as they are released.
So far, solar power generation has been criticized for being unstable. First of all, it is important to establish a fixed price system like Germany's, and optimize supply and demand by creating a system that allows users to pay less when they are generating the most electricity.
Even if they do that, they can't absorb it all because of the lack of capacity of the power companies.
For solar power generation, which has been slow to move forward, this product and the launch next year will be
I think the new Prius plug-in hybrid, which has been confirmed, will be the catalyst.
In the world of automobiles, the past 20 years have been a time of great popularity of hybrid vehicles.
I believe the next 10 years will be a time when plug-in hybrids will become increasingly popular.
What's next for electric cars? Or fuel cells?
This will depend greatly on the development and cost of next-generation batteries.
I think that at some point, lithium-ion batteries will become cheaper.
It is certain that batteries will emerge that will vastly surpass these in both performance and functionality.
With the conclusion of COP21, 2016 can be seen as the year when we move away from fossil fuels.