Overton Power District plans to succeed

On the wide spectrum of utility policies that encourage customers to adopt renewable energy systems, Overton Power District 5 You are leaving WAPA.gov. (OPD) is on the ambitious end of the spectrum.

Desert Southwest Energy Services Representative Audrey Colletti pointed out the strategy in OPD’s most recent integrated resource plan (IRP). “I look for customer goals and achievements in their IRPs and alternative reports,” explained Colletti.

“For example, one customer hasn’t increased rates in over five years, while another is thinking of decreasing rates. Some offer renewable power that is less expensive than fossil generation, but it is unusual for a small customer to make such an aggressive push to add more renewables.”

Residential solar installations like this 10-kW array benefit from a net-metering policy Overton Power District 5 developed to grow the renewable energy portion of its power portfolio. (Photo by Randall Ozaki, OPD5)

Residential solar installations like this 10-kW array benefit from a net-metering policy Overton Power District 5 developed to increase the amount of sustainable electricity in its power portfolio. (Photo by Randall Ozaki, OPD5)

The Southern Nevada power provider is playing the long game with an eye on someday generating most of its own electricity through renewables. “But that day is a long way off,” acknowledged OPD General Manager Mendis Cooper. “Our current goal is to provide ways to help our customers.”

Keeping customers in mind
Happily, the steps OPD is taking to increase renewables in its portfolio are also good for its 15,000, mostly residential customers. Its generous net-metering policy for small renewable systems is a notable step. Customers who install renewable generators that comply with OPD policies are eligible to receive a rebate of up to $2,500 for homeowners and up to $5,000 for large commercial industrial accounts. Since OPD implemented the policy, 49 net meters have been installed.

Increasing energy-efficiency programs is also part of OPD’s long-range plan that benefits customers in the near term. Thanks to a power contract, OPD will soon be stepping up its efforts to move customers to more efficient appliances and water and space heating systems. “We see natural gas as a reliability measure, but the savings will help to finance more customer efficiency measures, too,” Cooper explained.

Piecing together affordable sustainability
Even with the high cost of tapping gas lines, low natural gas prices are a boon to OPD—for now. “In eight to 10 years, gas prices are likely to go up,” said Cooper. “The cost of renewable resources, which are getting more competitive all the time, won’t be rising.”

The transition to a sustainable power supply is challenging for a utility that must rely on other providers for both generation and transmission, as OPD does. Cooper would like to get more WAPA hydropower, but acknowledges that ongoing drought conditions make that unlikely. OPD now has 49 rooftop solar arrays on its system, but the utility is investigating the feasibility of and support for utility-scale development. “That is where our customers will really see the benefits of alternative energy,” the general manager observed.

OPD also offers customers rebates for wind turbines and ground-source heat pumps.

Using all tools
OPD’s comprehensive long-range plan presents other opportunities—and identifies challenges—for load management as well. A scheme to install low-impedance transformers and implement power factor correction promises to increase systemwide efficiency.

With spillover growth from Las Vegas expected to add load over the next five years, OPD is working to encourage Clark County to adopt high-efficiency building standards. Programs to rebate measures such as weather stripping, relamping, heat pump systems and window replacement are being considered for existing buildings.

Another, nearly inexhaustible resource—an engaged and energy-savvy customer base—factors into OPD’s plans, too. The IRP highlights the utility’s use of social media to educate its customers about building technology, appliance energy use, efficient equipment and systems and no-cost common sense behaviors.

It will take every tool at OPD’s disposal to move its portfolio toward clean resources and self-generation. But that is what long-term planning is for, notes Cooper. “The IRP keeps our goals at the forefront where we can’t forget about them, and it reminds us every day of the issues we have to address.”