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News » US » Turner to build energy-generating Denver parking structure » published 6 Jun 2018

Turner to build energy-generating Denver parking structure

Denver Health & Hospital Authority has appointed Turner Construction to manage construction of a ‘net-zero-energy’ parking structure in the middle of Downtown Denver.

The US$25m design-build project will feature a rooftop photovoltaic array and other green features that will enable the garage to operate for 98% of the year “with the electrical meter spinning backwards”, selling power back to the local utility. For the remaining two percent of the year, the team has elected to employ a small 100A electrical service to charge the building’s DC battery system, rather than turning to natural gas.

“We didn’t start out building a net-zero project, but when we began the design-build process one of our major challenges was how to handle the power lines both adjacent to and feeding the structure,” explained Dan Wilder, senior project manager for Turner. “To make it work, we would have had to bury the lines in the alley alongside the site, which was expensive, given their location and length. So we thought, what’s the alternative? And we worked with our partners to come up with something of which we’re all incredibly proud.”

He added that Turner worked closely with Turner’s design and trade partners to develop an off-grid, net-zero solution that met the client’s needs, saving approximately US$2m in construction costs in addition to the projected cost savings on future energy.

“We’re excited about this garage as a model for how to go off-grid while staying right in the middle of the action,” said Wilder, noting that it’s not common for net-zero-energy buildings to be located in urban settings. “It demonstrates that in addition to being the right thing to do, going green can be a cost saver during construction as well as long-term.”


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This article was published on 6 Jun 2018 (last updated on 6 Jun 2018).

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