in News Departments > Products & Technologies
print the content item

The MaRS Cleantech Fund has completed a venture deal with Toronto-based energy storage firm Hydrostor, whose technology converts surplus electrical energy to underwater compressed air and stores it for use at peak times.

"Our fund targets technologies that change the energy game, and low-cost storage is at the top of our list," says Tom Rand, co-managing director of the MaRS Cleantech Fund. "This is grid-scale technology, meaning that it has the ability to store energy on a level that will significantly impact our electricity grid. If you combine Hydrostor's technology with solar or wind, you get cost-competitive base-load renewable power that will disrupt global energy markets."

According to the companies, the technology uses surplus renewable electricity to drive a compressor that pressurizes atmospheric air to the pressure found at the sea floor offshore. The heat produced during compression is extracted from the air and stored in underwater accumulators, where the weight of the water keeps it at a constant pressure until required.

When demand for electricity is again high, the companies continue, the system is reversed: The weight of the water forces the air back to the surface, where it collects the stored heat and drives an expander, reproducing approximately 70% of the input electricity and releasing the air back into the environment.

Hydrostor has two commercial projects under development. The first is in collaboration with utility host Toronto Hydro-Electric System Ltd. The second, with the national utility of a Caribbean island, will store wind power generated at night when it cannot otherwise be used.



Mortenson Construction_id2024

Trachte Inc._id1770
Latest Top Stories

Canadian Wind Industry Urges For More Federal Support

The Canadian Wind Energy Association says the country's federal government, once a big industry supporter, should again back wind power.


Wind And Solar Helped California Grid During Challenging Summer

According to the California Independent System Operator, the state suffered from heat waves and drought this year, and wind power played a "significant role" in keeping the lights on.


Recapping The Wind Industry's Third-Quarter Deals

Mercom Capital Group recaps investment and merger and acquisition activity during July, August and September.


Yearly Installed Capacity Figures Already Beat 2013 Numbers, More Wind On The Way: AWEA

While the American Wind Energy Association (AWEA) lobbies Congress to extend the production tax credit, the association notes wind projects now under construction signal a vibrant 2015.


Yahoo Inks Contract To Buy Kansas Wind Power

The Internet company plans to log in to the Alexander wind project, which is being built by community developer OwnEnergy.

Renewable NRG_id1934
Hybrid Energy Innovations 2015
BG 2015DblBox_id2032