Elon Musk will announce the next step in Tesla's plan, but this part does not involve any cars. Instead, it will feature a large battery pack capable of powering a home during a blackout, and storing excess electricity for a rainy day.

This new home battery technology has interested more than Silicon Valley, with Wall Street reacting to the news with a $18 rise in the share price. Some analysts predict the stock will skyrocket to $75 or $100 its current value, which would push Tesla past $30 billion in market valuation.

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Home batteries would be one of the first major disruptions in the power grid and if Tesla is able to reach the market first, it could bring billions in revenue. It is planning to lease the batteries on a $1,500 down payment, with $15 per month payments for a decade.

This is similar to SolarCity's leasing program with solar panels, allowing the customer to lease the panel for ten years. SolarCity's chairman and head investor is Elon Musk, so it makes sense he is using the same business model for the home batteries.

The home battery should be able to tap into things like a home solar panel and other renewables, lowering the price of electricity in off peak hours. This could be huge with the growth of solar panels in the U.S. over the past three years, and in places like China where solar panels is quickly becoming the most valuable renewable source.

Tesla is also planning to sell utility style battery to businesses, already working with Wal-Mart to offer it in stores. The utility battery will be much larger, capable of keeping a whole store online if a blackout were to happen, alongside cutting energy costs through solar panel integration.

Alongside the launch of the Model X later this year, we can expect Tesla's year will be packed full of potential, unlike 2014 which was largely uneventful.

TagsElon Musk, tesla motors, home battery