BREAKING: Tesla’s board of directors has made a bid to acquire SolarCity. The proposed acquisition of SolarCity by Tesla would amount to an approximate $2.8 billion stock-only deal or a premium of 21% to 30% over today’s SolarCity (NASDAQ:SCTY) closing price.

The two companies have shared history with one another through strategic partnerships that have allowed each company to leverage its core technology to provide clean energy and off-grid energy storage. Not only do both companies share a mission rooted in accelerating the transition to a sustainable energy future, they also share arguably the most critical component to driving this mission forward – Elon Musk.

Musk sits as chairman at SolarCity and also the largest individual shareholder of the company. He’s also majority shareholder and CEO at Tesla, now split into automotive division Tesla Motors, and Tesla Energy which designs and manufacturers the Powerall and Powerpack lithium-ion battery storage system used in SolarCity’s massive solar power projects.

By combining the two entities, Tesla will be able to effectively control design, strategy, and production by ultimately unifying operations under a single umbrella. Tesla’s statement reads:

“We believe that the possibilities for product, service and operational synergies would be substantial, and that a combination would allow our companies to build on our respective core competencies and remain at the forefront of delivering innovative approaches for sustainable transportation and energy.”

Full Statement from Tesla:

Tesla’s mission has always been tied to sustainability. We seek to accelerate the world’s transition to sustainable transportation by offering increasingly affordable electric vehicles. And in March 2015, we launched Tesla Energy, which through the Powerwall and Powerpack allow homeowners, business owners and utilities to benefit from renewable energy storage.

It’s now time to complete the picture. Tesla customers can drive clean cars and they can use our battery packs to help consume energy more efficiently, but they still need access to the most sustainable energy source that’s available: the sun.

The SolarCity team has built its company into the clear solar industry leader in the residential, commercial and industrial markets, with significant scale and growing customer penetration. They have made it easy for customers to switch to clean energy while still providing the best customer experience. We’ve seen this all firsthand through our partnership with SolarCity on a variety of use cases, including those where SolarCity uses Tesla battery packs as part of its solar projects.

So, we’re excited to announce that Tesla today has made an offer to acquire SolarCity. A copy of Tesla’s offer is provided below.

If completed, we believe that a combination of Tesla and SolarCity would provide significant benefits to our shareholders, customers and employees:

• We would be the world’s only vertically integrated energy company offering end-to-end clean energy products to our customers. This would start with the car that you drive and the energy that you use to charge it, and would extend to how everything else in your home or business is powered. With your Model S, Model X, or Model 3, your solar panel system, and your Powerwall all in place, you would be able to deploy and consume energy in the most efficient and sustainable way possible, lowering your costs and minimizing your dependence on fossil fuels and the grid.
• We would be able to expand our addressable market further than either company could do separately. Because of the shared ideals of the companies and our customers, those who are interested in buying Tesla vehicles or Powerwalls are naturally interested in going solar, and the reverse is true as well. When brought together by the high foot traffic that is drawn to Tesla’s stores, everyone should benefit.
• We would be able to maximize and build on the core competencies of each company. Tesla’s experience in design, engineering, and manufacturing should help continue to advance solar panel technology, including by making solar panels add to the look of your home. Similarly, SolarCity’s wide network of sales and distribution channels and expertise in offering customer-friendly financing products would significantly benefit Tesla and its customers.
• We would be able to provide the best possible installation service for all of our clean energy products. SolarCity is the best at installing solar panel systems, and that expertise translates seamlessly to the installation of Powerwalls and charging systems for Tesla vehicles.
• Culturally, this is a great fit. Both companies are driven by a mission of sustainability, innovation, and overcoming any challenges that stand in the way of progress.

Today’s offer to acquire SolarCity is only the first step toward a successful combination of Tesla and SolarCity. We will provide a further update if and when an agreement is reached.