

Energy
Elon Musk pushes more Tesla battery installs as blackout hits Puerto Rico
Amid Puerto Rico’s recent islandwide blackout, Elon Musk stated that the Tesla team would be working to expand its existing battery and solar installations 24/7 to support the country’s damaged power grid better.
In an announcement on Wednesday, Puerto Rico’s Electric Power Authority stated that the whole island is without electricity and that it would likely take around 24 to 36 hrs before power is restored. Puerto Rico power officials further noted that they are prioritizing the restoration of electricity in key locations first, such as hospitals and banking centers. The recent islandwide blackout came not long after another power outage affected around 840,000 residents last week.
Responding to the news on Twitter, Musk stated that Tesla batteries have gone live and are delivering power to 662 locations in Puerto Rico. According to Musk, the Tesla team is working around the clock to activate “several hundred” more.
Tesla batteries are currently live & delivering power at 662 locations in Puerto Rico. Team is working 24/7 to activate several hundred more. https://t.co/OMu8qKJvLy
— Elon Musk (@elonmusk) April 18, 2018
Not long after the billionaire entrepreneur’s Twitter announcement, Tesla’s official Twitter account shared photos of the company’s solar installations in the island as well, stating that there are currently over 1,000 Tesla batteries that have been activated in 662 locations so far. Echoing Musk’s statement, the electric car and energy company noted that more projects are underway.
Puerto Rico has been dealing with a power crisis since being hit by Hurricane Maria almost 7 months ago. When the Category 4 hurricane made landfall, it devastated the country’s entire power grid, leaving its roughly 3.5 million residents without power. Amid the relief efforts to aid the country, Tesla began shipping some of its Powerwall 2 residential battery storage units and solar panels to help restore electricity to Puerto Rico’s residents. Musk also made a personal donation to the country worth $250,000.
- Tesla’s solar system in Puerto Rico. [Credit: Tesla]
- Tesla’s solar system in Puerto Rico. [Credit: Tesla]
Musk noted that its batteries could be used by the country to help support its damaged grid, considering that it had already done similar projects for “many smaller islands around the world” in the past. The Tesla CEO further stated that while there is no scalability limit when it comes to battery storage and solar solutions, the decision to pursue such a project would ultimately lie in the hands of the Puerto Rico government.
Puerto Rico Governor Ricardo Rossello expressed interest in Musk’s Twitter statement, suggesting that the island nation could become Tesla’s flagship energy project. Since then, Tesla has been hard at work installing its batteries and its photovoltaic systems to locations across the country; and if Musk’s recent announcement is any indication, more installations will likely happen soon.
As we noted in a previous report, if Tesla aims to supply 40% of the island’s energy through solar and battery solutions, the cost of the project would be substantial. Considering the rates of Tesla’s solar panels and battery packs, the cost of materials would roughly come at $9.58 billion. Factoring in an estimated 7% interest rate and Puerto Rico’s rather poor credit rating and high debt, the project could ultimately cost over $21 billion over 20 years.
Energy
Tesla’s new Megablock system can power 400,000 homes in under a month
Tesla also unveiled the Megapack 3, the latest iteration of its flagship utility scale battery.

Tesla has unveiled the Megablock and Megapack 3, the latest additions to its industrial-scale battery storage solution lineup.
The products highlight Tesla Energy’s growing role in the company, as well as the division’s growing efforts to provide sustainable energy solutions for industrial-scale applications.
Megablock targets speed and scale
During the “Las Megas” event in Las Vegas, Tesla launched Megablock, a pre-engineered medium-voltage block designed to integrate Megapack 3 units in a plug-and-play system. Capable of 20 MWh AC with a 25-year life cycle and more than 10,000 cycles, the Megablock could achieve 91% round-trip efficiency at medium voltage, inclusive of auxiliary loads.
Tesla emphasized that Megablock can be installed 23% faster with up to 40% lower construction costs. The platform eliminates above-ground cabling through a new flexible busbar assembly and delivers site-level density of 248 MWh per acre. With Megablock, Tesla is also aiming to commission 1 GWh in just 20 business days, or enough to power 400,000 homes in less than a month.
“With Megablock, we are targeting to commission 1 GWh in 20 business days, which is the equivalent of bringing power to 400,000 homes in less than a month. It’s crazy. How are we planning to do that? Like most things at Tesla, we are ruthlessly attacking every opportunity to save our customers time, simplify the process, remove steps, (and) automate as much as we can,” the company said.
Megapack 3 is all about simplicity
The Megapack 3 is Tesla’s next-generation utility battery, designed with a simplified architecture that cuts 78% of connections compared to the previous version. Its thermal bay is drastically simplified, and it uses a Model Y heat pump on steroids. The battery weighs about 86,000 pounds and holds 5 MWh of usable AC energy. Tesla engineers incorporated a larger battery module and a new 2.8-liter LFP cell co-developed with the company’s cell team.
The Megapack 3 is designed for serviceability, and it features easier front access and no roof penetrations. About 75% of Megapack 3’s total mass is battery cells, with individual modules weighing as much as a Cybertruck. It’s also tough, with an ambient operating temperature range from -40C to 60C. This should allow the Megapack 3 to operate optimally from the coldest to the hottest regions on the planet.
Production is set to begin at Tesla’s Houston Megafactory in late 2026, with planned capacity of 50 GWh per year. Additional supply will come from Tesla’s 7 GWh LFP facility in Nevada, which is expected to open in 2025, as well as with third-party partners.
Energy
Tesla Energy is the world’s top global battery storage system provider again
Tesla Energy captured 15% of the battery storage segment’s global market share in 2024.

Tesla Energy held its top position in the global battery energy storage system (BESS) integrator market for the second consecutive year, capturing 15% of global market share in 2024, as per Wood Mackenzie’s latest rankings.
Tesla Energy’s lead, however, is shrinking, as Chinese competitors like Sungrow are steadily increasing their global footprint, particularly in European markets.
Tesla Energy dominates in North America, but its lead is narrowing globally
Tesla Energy retained its leadership in the North American market with a commanding 39% share in 2024. Sungrow, though still ranked second in the region, saw its share drop from 17% to 10%. Powin took third place, even if the company itself filed for bankruptcy earlier this year, as noted in a Solar Power World report.
On the global stage, Tesla Energy’s lead over Sungrow shrank from four points in 2023 to just one in 2024, indicating intensifying competition. Chinese firm CRRC came in third worldwide with an 8% share.
Wood Mackenzie ranked vendors based on MWh shipments with recognized revenue in 2024. According to analyst Kevin Shang, “Competition among established BESS integrators remains incredibly intense. Seven of the top 10 vendors last year struggled to expand their market share, remaining either unchanged or declining.”

Chinese integrators surge in Europe, falter in U.S.
China’s influence on the BESS market continues to grow, with seven of the global top 10 BESS integrators now headquartered in the country. Chinese companies saw a 67% year-over-year increase in European market share, and four of the top 10 BESS vendors in Europe are now based in China. In contrast, Chinese companies’ market share in North America dropped more than 30%, from 23% to 16% amid Tesla Energy’s momentum and the Trump administration’s policies.
Wood Mackenzie noted that success in the global BESS space will hinge on companies’ ability to adapt to divergent regulations and geopolitical headwinds. “The global BESS integrator landscape is becoming increasingly complex, with regional trade policies and geopolitical tensions reshaping competitive dynamics,” Shang noted, pointing to Tesla’s maintained lead and the rapid ascent of Chinese rivals as signs of a shifting industry balance.
“While Tesla maintains its global leadership, the rapid rise of Chinese integrators in Europe and their dominance in emerging markets like the Middle East signals a fundamental shift in the industry. Success will increasingly depend on companies’ ability to navigate diverse regulatory environments, adapt to local market requirements, and maintain competitive cost structures across multiple regions,” the analyst added.
Energy
Tesla inks multi-billion-dollar deal with LG Energy Solution to avoid tariff pressure
Tesla has reportedly secured a sizable partnership with LGES for LFP cells, and there’s an extra positive out of it.

Tesla has reportedly inked a multi-billion-dollar deal with LG Energy Solution in an effort to avoid tariff pressure and domesticate more of its supply chain.
Reuters is reporting that Tesla and LGES, a South Korean battery supplier of the automaker, signed a $4.3 billion deal for energy storage system batteries. The cells are going to be manufactured by LGES at its U.S. factory located in Michigan, the report indicates. The batteries will be the lithium iron phosphate, or LFP, chemistry.
Tesla delivers 384,000 vehicles in Q2 2025, deploys 9.6 GWh in energy storage
It is a move Tesla is making to avoid buying cells and parts from overseas as the Trump White House continues to use tariffs to prioritize domestic manufacturing.
LGES announced earlier today that it had signed a $4.3 billion contract to supply LFP cells over three years to a company, but it did not identify the customer, nor did the company state whether the batteries would be used in automotive or energy storage applications.
The deal is advantageous for both companies. Tesla is going to alleviate its reliance on battery cells that are built out of the country, so it’s going to be able to take some financial pressure off itself.
For LGES, the company has reported that it has experienced slowed demand for its cells in terms of automotive applications. It planned to offset this demand lag with more projects involving the cells in energy storage projects. This has been helped by the need for these systems at data centers used for AI.
During the Q1 Earnings Call, Tesla CFO Vaibhav Taneja confirmed that the company’s energy division had been impacted by the need to source cells from China-based suppliers. He went on to say that the company would work on “securing additional supply chain from non-China-based suppliers.”
It seems as if Tesla has managed to secure some of this needed domestic supply chain.
-
News2 weeks ago
Tesla is overhauling its Full Self-Driving subscription for easier access
-
Elon Musk2 weeks ago
Elon Musk shares unbelievable Starship Flight 10 landing feat
-
Elon Musk2 weeks ago
Elon Musk reveals when SpaceX will perform first-ever Starship catch
-
Elon Musk1 week ago
Tesla’s next-gen Optimus prototype with Grok revealed
-
News6 days ago
Tesla launches new Supercharger program that business owners will love
-
Elon Musk6 days ago
Tesla Board takes firm stance on Elon Musk’s political involvement in pay package proxy
-
News2 weeks ago
Tesla appears to be mulling a Cyber SUV design
-
News1 week ago
Tesla deploys Unsupervised FSD in Europe for the first time—with a twist