This technology raises the efficiency of all power plants. Each level gives you a bonus of 1% energy. At the same time energy technology is a fundamental research to build certain units, buildings and other technologies. It does not effect solar cells.
 

Requirements

 
Research Lab Level 1
 

Research Costs

 

Level		Metal	Kryptonite	Spice	Research Time	Energy Bonus	Comment
1		400	800	400	00:30:33	+1%	is a requirement for Weapons Factory
2		800	1.600	800	01:01:06	+2%	is a requirement for Graviton Technology
3		1.600	3.200	1.600	02:02:13	+3%	is a requirement for Light Graviton Cannon
4		3.200	6.400	3.200	04:04:27	+4%	is a requirement for Thermosolar Plant , Mining Technology , Shield Technology and Small shield dome
5		6.400	12.800	6.400	08:08:53	+5%
6		12.800	25.600	12.800	16:17:47	+6%	is a requirement for Target Systems , Turboflak
7		25.600	51.200	25.600	1 D 08:35:33	+7%
8		51.200	102.400	51.200	2 D 17:11:07	+8%	is a requirement for Laser Cannon Battery and Large shield dome
9		102.400	204.800	102.400	5 D 10:22:13	+9%
10		204.800	409.600	204.800	10 D 20:44:27	+10%	is a requirement for Solar cannon and Micro-system accelerator
11		409.600	819.200	409.600	21 D 17:28:53	+11%

 
List of Researchable Technologies