HOMER Energy Blog & Opinion

HPNET: Advancing Micro-hydro Power (Part 1) — Local Community is Key

Community-micro-hydro-Indonesia.Community micro hydro in Indonesia

The Hydro Empowerment Network (HPNET), co-founded by Dipti Vaghela (left) in 2012, brings practitioners a knowledge exchange platform to advance micro-hydro power. HPNET focuses primarily on “policy, technology, and socio-environmental aspects for sustainability.” Vaghela, who serves as HPNet’s coordinator, talks to Microgrid News & Insight in this first of a two-part interview. In part 1, Vaghela talks about the benefits of micro-hydro and the connection between local communities and project successes.   MGN: Micro-hydro power is […]

Philippines Microgrids Bring Sustainable Energy to Villages — A HOMER Pro Case Study

Many communities in The Philippines lack access to reliable, affordable power.

Shell Foundation, Philippines, recently hired consultant Silver Navarro to assist its Dutch consultant with an Access to Energy program promoting Philippines microgrids. The program’s purpose is designing an off-grid power system that the community can sustainably operate and maintain to meet its basic electricity requirement. HOMER Pro helped the program make rural microgrids reliable and affordable.

Ending Worldwide Rural Energy Poverty with Clean, Off-grid Solutions: Part 2

microgrids-address-global-energy-povertyWind turbines help Kodiak Island go 100% renewable energy. From: https://assets.rbl.ms/6466890/980x.jpg

Part 1 of this post addressed the issue of global energy poverty in rural areas: its implications, challenges, and promising developments in African nations and in India. Part 2 addresses off-grid problems in Haiti, potential microgrid solutions in Alaska, and the population-empowering “Minigrid Game.” Haiti struggles with extreme energy poverty Haiti is the poorest nation in the Western Hemisphere. Seventy-five percent of Haitians lack electricity access and must cook and light their homes with […]

Ending Worldwide Rural Energy Poverty with Clean, Off-grid Solutions: Part 1

House of farmer in Jaisalmer, Rajasthan, India

More than 1.2 billion people worldwide lack basic access to electricity. According to the International Energy Agency (IEA), 95% of these people are in Sub-Saharan Africa and developing Asia, and 80% are the rural poor. Providing reliable, resilient clean energy to the world’s often remote, off-grid rural communities gives these communities the power (in both senses of the word) to run businesses, create new economic opportunities, and ultimately improve health and sanitation while increasing […]

Head of New York Public Service Commission to Keynote HOMER International Microgrid Conference

microgrid conference speakers: Zibelman to keynoteNew York Public Service Commission Chairwoman Audrey Zibelman. Photo courtesy of the state Department of Public Service.

Audrey Zibelman, chair of the New York Dept of Public Service Commission (PSC), will give the keynote address at the 4th Annual HOMER International Microgrid Conference coming up in New York City on November 7-8, 2016. Zibelman has a background in the microgrid industry and has been responsible for designing and leading the regulatory and retail market changes of the electric industry under Governor Andrew M. Cuomo’s Reforming the Energy Vision (REV). REV […]

Main-grid and Microgrid Bankability in Africa: A Comparison

Clusters of gas-fired turbines, big dams, and geothermal projects in Sub-Saharan Africa tend to have very complex financing structures. In addition, they also often involve complex debt/equity structures from local banks. Microgrids, however, are within the reach of much smaller organizations.

Microgrid Antifragility: Don’t Be a Turkey

Like banks “too big to fail,” the grids in most developed nations are so fragile and interdependent that they are vulnerable to natural or human-made disasters that can cripple whole cities and regions. Microgrids, however, are like your local bank: independent from other local banks and thus much more resilient to unexpected future events. Resilience is an obvious  benefit of breaking the grid system into smaller components independent of each others’ operation. But […]

RISØ Report Concludes Danvest System Delivers Power Quality in Microgrid Applications

Danish national research institute RISØ, a world leader in setting standards for the modern wind industry, has released a report on power quality in diesel-wind microgrid-based hybrid systems.  RISØ measured performance using a Danvest Hybrid Power Plant running with a Vestas 600kW wind turbine. The institute tested voltage and frequency fluctuations during continuous operation as well as during transitions between different states of operation. The report concludes that frequency and voltage vary very little, both […]

Parameters for Remote Grid Success in Africa

Like most developing countries in the world, Sub-Saharan African (SSA) countries can present some challenges for promoting businesses such as remote grids. Project cost structures and expenditure patterns that are viable in other regions (developed countries) will not apply directly in SSA – a manifestation of some generic developmental challenges.  Nigeria and other countries in Sub-Saharan Africa have power sectors dominated by main grid electricity supply that serves as the primary source of electricity […]

HOMER Pro 3.6 Steps Up to the Storage Challenge

HOMER Pro 3.6, released last week, introduces two new add-on modules that our power users have been requesting for some time: Multi-Year Inputs – allows you to model changes that can occur over the course of a project, such as PV degradation, grid price escalation, load growth, and fuel prices. Advanced Storage – including rate-dependent losses, changes in capacity with temperature, variable depth-of-discharge for cycle life, and increased degradation rate at higher temperatures. […]