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REopt News Stories

The following stories feature REopt™ and REopt Lite news and announcements.

REopt Lite Adds Custom Electricity Rates and an Integrated Critical Load Builder

March 6, 2019, NREL Program News — Building owners and energy managers looking to evaluate renewable energy and storage economics for their site can use REopt Lite's custom utility rate tariff capabilities and an integrated critical load profile builder—new features that allow a more detailed energy analysis without leaving the tool.

REopt Lite Adds New Energy Optimization Capabilities with Wind, Custom Rate Tariff, Critical Load Builder, and User Dashboard

Nov. 5, 2018, NREL Program News — In its ongoing effort to support energy cost savings and resilience for commercial buildings, the National Renewable Energy Laboratory’s (NREL’s) REopt Lite web tool now offers a new wind optimization module, custom utility rate tariffs, a critical building load profile builder, and a user dashboard. With this latest release of capabilities, building owners and energy managers can use REopt Lite to evaluate the economic viability of distributed wind alongside PV and battery storage at a site, and further diversify resilient power technologies.

Adding Businesses to Microgrids Helps Financial Viability

Aug. 21, 2018, PV Magazine Adding energy-intensive industries to microgrids can help refinance system costs and can lower tariffs for residential consumers, a study suggests. To achieve this though, accurate system design and sizing are essential. According to a new report by Energy 4 Impact, the business case for microgrids in rural Africa improves with the addition of “productive use of energy” (PUE). The authors of the study—produced with the U.S. National Renewable Energy Laboratory (NREL) in support of Power Africa’s Beyond the Grid Program—say the increased use of energy by small agriculture, sawmills and other businesses will help pay off the capital costs of microgrids faster, and thus help reduce energy costs for all users.

NREL Improves Tool for Solar-Plus-Storage Analysis

June 15, 2018, Engineering 360 The U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) has rolled out improvements to REopt Lite, a web-based tool for solar photovoltaics (PV) and battery storage optimization. The tool now offers enhanced resilience analysis capabilities that allow building owners and energy managers to size PV and storage systems to meet a specified outage duration.

Product Announcement: REopt Lite’s Fresh Features Gauge Costs of Solar+Storage, Bypass Pricey Experts

June 13, 2018, Energy Manager Today A new tool is available for building owners and energy managers that will allow them to easily evaluate the costs and benefits of solar photovoltaic and battery storage systems (solar+storage) to power critical building loads when grid outages occur. The newly released features of the US Department of Energy’s National Renewable Energy Laboratory’s (NREL) online solar+storage optimization tool, REopt Lite offers enhanced resilient design capabilities developed in collaboration with Clean Energy Group through its Resilient Power Project.

Enhanced Resilience Features Help REopt Lite Users Size Solar+Storage Systems to Support Critical Building Loads

June 2018, NREL Program News — REopt™ Lite, the National Renewable Energy Laboratory’s (NREL’s) solar photovoltaics (PV) and battery storage optimization web tool, now offers enhanced resilience analysis capabilities that allow building owners and energy managers to size PV and storage systems to meet a specified outage duration. By giving users the ability to compare the sizing and costs of a resilient system with a system sized to maximize savings, the new release of REopt Lite will help decision-makers identify potential cost gaps and balance their economic and resilience goals.

REopt Lite’s Application Programming Interface Boosts Solar+Storage Analysis Flexibility

June 2018, NREL Program News — The National Renewable Energy Laboratory (NREL) released an application programming interface (API) for its REopt Lite solar photovoltaics (PV) and battery storage optimization web tool. The API enables streamlined integration with other tools inside and outside NREL, allowing building owners and researchers to evaluate the economics of grid-connected solar PV and battery storage (solar+storage) at multiple commercial sites and perform sensitivity analyses in an efficient manner.

Q&A with Andy Walker: The Ins and Outs of Renewable Energy Optimization

April 30, 2018, NREL Program News — Andy Walker is a recently appointed research fellow at NREL and the creator of Renewable Energy Optimization (REO), for which he holds a patent. REO techniques inform institutions across the world, from businesses such as Frito-Lay to government policies such as the U.S. Air Force’s approach to on-site generation. REO has since been developed by NREL staff to become the REopt tool.

NREL's Energy Storage and REopt Teams Awarded $525k from TCF to Study Commercial Viability of Optimal, Reliable Building-Integrated Energy Storage

Nov. 14, 2017, NREL Program News — NREL's Energy Storage and REopt Teams are recipients of a $525k monetary award to commercialize building-integrated energy storage control strategies, working with private industry partner, Eaton Corporation. Ying Shi and Kandler Smith from the Transportation & Hydrogen Systems Center will develop energy storage control strategies informed by techno-economic analysis from Dylan Cutler and Kate Anderson's energy decision science and resilience work in NREL's Integrated Applications Center.

New REopt Lite Tool Allows Building Owners to Optimize PV and Battery System Sizes

Oct. 2, 2017, NREL Program News — The National Renewable Energy Laboratory’s (NREL’s) new REopt™ Lite web tool (beta version) helps building owners evaluate the economics of grid-connected solar photovoltaics (PV) and battery storage at commercial sites. It identifies the optimal PV and battery system sizes and dispatch strategy to minimize the life cycle cost of energy at a specific site. The web tool also estimates the amount of time a PV and battery system can sustain the site's critical load during a grid outage. REopt Lite is a publicly available web version of NREL’s more comprehensive REopt model.