Low cost and point performance solar batteries address specific needs. For instance, lead-acid batteries tend to be the most economical; however, their lifespan and efficiency leave much to be desired. Some manufacturers mitigate this by offering lithium-ion batteries with improved design and production processes, which offer lower cost without compromising on performance. Solar battery technology can also be obtained with reduced upfront cost through government incentives, leasing options, and bulk purchasing. Shared community solar projects and collective battery storage systems offer further reduced costs for consumers.