Nikola Tesla was indeed a remarkable inventor and engineer who made significant contributions to the field of electrical engineering. His work on alternating current (AC) power systems revolutionized the way electricity is generated and distributed.

While Tesla's ideas and inventions were certainly promising, there are several reasons why his specific energy technologies have not been widely adopted or continued by others.

1. Practical Challenges: Tesla's energy concepts and inventions often faced practical challenges in terms of scalability, efficiency, and economic viability. While his ideas were innovative, some of them were difficult to implement on a large scale due to technical limitations and cost considerations.

2. Lack of Financial Support: Tesla struggled to secure sufficient financial support for his projects. Despite his brilliance, he faced financial difficulties and relied on funding from investors, which limited his ability to fully develop and commercialize his ideas.

3. Competitive Landscape: During Tesla's time, there was intense competition in the energy industry, particularly between the proponents of AC and direct current (DC) power systems. Tesla's AC system ultimately prevailed, but many of his other ideas faced competition from alternative technologies, which hindered their widespread adoption.

4. Limited Resources and Infrastructure: The infrastructure required to support Tesla's energy technologies, such as wireless transmission of electricity, was not readily available during his time. The lack of appropriate resources and infrastructure made it challenging to implement and further develop his ideas.

5. Shift in Priorities: After Tesla's time, there was a shift in energy priorities and research focus. The energy industry began to prioritize other technologies, such as fossil fuels, nuclear power, and renewable energy sources like solar and wind power. These alternatives gained more attention and investment due to their perceived economic and practical advantages.

While Tesla's specific energy technologies may not have been widely continued by others, his contributions to the field of electrical engineering and his advancements in AC power systems continue to shape our modern world. Many of his ideas and principles have been built upon and integrated into the technologies we use today.

It's important to note that innovation in the energy sector is a continuous process, and advancements are made by building upon the work of previous pioneers like Tesla. While his specific energy concepts may not have been fully realized, his legacy lives on through the impact he made on the field of electrical engineering and the inspiration he continues to provide to inventors and scientists.