MIT

Check out this week’s list of some of the newest announcements related to clean energy products.

MIT scientists have suggested that used electric vehicle batteries could offer a more viable business case than purpose-built systems for the storage of grid-scale solar power in California. Such ‘second life’ EV batteries, may cost only 60% of their original purchase price to deploy and can be effectively aggregated for industrial scale storage even if they have declined to 80% of their original capacity.

MIT researchers model how 4 GW of powerlines connecting the northeast USA to Quebec hydroelectric facilities eliminates the need for up to 60 GW of wind, solar and storage as the two regional power grids approach 100% clean energy.

MIT scientists have developed a solar desalinator which sends heat from the sun through a ten-stage process of evaporation and condensation. The group estimates that a $100 device incorporating their innovation could provide the daily drinking water needs of a family.

Solar module manufacturers should begin testing new technologies in higher-value niche markets, say scientists at the U.S. institution. For example, bringing perovskite technology directly to the mainstream market remains prohibitive in terms of initial investment but segments such as building-integrated PV or microelectronics may offer better routes to commercial maturity.

Although, the author of this article sees a path below 15¢ per watt. Researchers at MIT, working with financial modeling teams at NREL, have projected the electrical losses and financial gains of thinning solar cells from the current 160 micrometers to 50 micrometers.

To get long-duration storage costs down to 5 cents per kilowatt-hour, research teams funded by ARPA-E are pursuing breakthroughs in flow batteries, hydrogen storage and other technologies—even thermovoltaics.

Recognizing their critical role in the future grid, MIT still sees limits to batteries in an intermittent renewable-dominated power sector. In this op-ed, John Reilly, co-director of the MIT Joint Program on the Science and Policy of Global Change, explains why.

Researchers see wind and solar headed to over 40% of US electricity generation, even without major national policy. However, analysts project that beyond 40%, the intermittent nature of these sources will drive costs higher without nuclear power than with it.

MIT scientists claim to have created a material 10 times more black than anything witnessed to date. It is said to be able to absorb more than 99.96% of incoming light and reflect 10 times less light than other superblack materials. The invention may be interesting for the development of black silicon PV technology and carbon nanotube-based solar cells.