(KRON) -- A San Jose engineer who pleaded guilty to bombing two PGE electrical transformers in late 2022 and early 2023 was sentenced to 10 years in federal prison, the U.S. Department of Justice announced Wednesday. Prosecutors said Peter Karasev, 39, used homemade explosives to cause over $200,000 in damages and disrupted power to over 1,500 households in San Jose. Karasev admitted in a plea deal on April 29 that the bombings were premeditated, deliberate and extensively researched. Before the attacks, he made internet searches regarding explosive materials, infrastructure attacks and geopolitical conflicts, according to the DOJ. In addition to 10 years in prison, Karasev was ordered to pay $214,880.67 in restitution. He was also sentenced to three years of supervised release. Peter Karasev (Mugshot provided by San Jose PD) On Dec. 8, 2022, Karasev bombed a transformer near the Westfield Oakridge Mall. Nearly a month later, on Jan. 5, 2023, Karasev damaged a transformer and an adjacent building in an explosion near the Plaza Del Rey shopping center. Surveillance cameras caught Karasev riding his bicycle to and from the bombing sites, the San Jose Police Department said. Of the 1,500 households that were impacted by power outages, prosecutors said 15 of them had life-sustaining medical needs and were enrolled in PGE’s Medical Baseline Program for continued electrical service. Some PGE customers were left without power for nearly 16 hours. At his home at 668 Potomac Court, where he lived with his three young children and wife, agents seized homemade explosives, over 300 pounds of explosive precursor materials, hazardous chemicals, firearms, and remote detonation devices, the DOJ said. According to an SJPD bomb squad captain, the entire Potomac Court neighborhood, including a school across the street, faced a “huge danger” from the number of explosives that were inside. The six bedroom, four bathroom home was condemned and later put up for sale. A warning sign was posted by the County of Santa Clara outside the 668 Potomac Court home. (KRON4 image) Karasev worked for autonomous car company Zoox in Foster City, the company confirmed to KRON4. He was arrested in the company’s parking lot on March 1, 2023, court documents show. When Karasev was questioned following his arrest, he told detectives that he was interested in building model rockets, used methamphetamine, and was concerned about the war between Russia and Ukraine because he had family on both sides. “Karasev’s specialized knowledge in explosives, the vast quantity of bombmaking materials discovered in his home, and his readiness to deploy both against our Nation’s energy infrastructure made him a very dangerous individual who posed a significant risk to public safety,” said Assistant Attorney General for National Security John Eisenberg. ...read more read less