Battery Storage

Why Solar Energy And Battery Storage Matter?

Solar Reliable Source of Energy

Solar Reliable Source of Energy

The last couple of weeks have been quite productive and promising for the Texas solar industry. The 2019 Solar and Storage Festival (SSF19) was organized by Zpryme in San Antonio to bring experts together to explore market growth opportunities, innovative financing, and how to position solar and battery storage at the center of the energy transition. SSF19 offered opportunities for utilities, industries, and community leaders to participate and share their ideas and concerns, with a focus particularly on the effects of extreme weather on the supply and demand of electricity.

As a person who has advocated fighting for climate change and implementing climate solutions to reduce our vulnerability to the impacts, I am particularly interested in the emerging field of solar energy and battery storage as a part of the climate solution. I found my new employer, Lighthouse Solar, to be a dedicated local company committed to transitioning Texas to clean, affordable, distributed, renewable power sources.

I studied Energy Policy and Administration at Texas Tech University where I was fortunate to have worked on several projects related to climate crisis and energy efficiency. So, I was interested in taking part in SSF19 to explore more about the future of the solar and storage market in Texas. Prior to this opportunity, I participated in Dr. Katharine Hayhoe's classes, panel discussions, and presentations which were instrumental in opening my eyes to the necessity of being prepared for the negative impacts of climate change and reducing communities' vulnerability against climate change. The climate is rapidly changing; reducing carbon emissions, particularly from the energy sector, and shifting our reliance away from fossil fuels toward renewable energy is one of the most important ways to mitigate impacts.

Extreme weather events such as hurricanes and storms across the United States are becoming more frequent and the damage done is exacerbated due to climate change. Communities are affected on a broader scale each year. As the weather gets warmer, hurricanes are exemplifying:

● increased intensity

● increased wind speeds

● more frequent occurrences

● higher levels of precipitation associated with them

● a lead to increased sea-level rise, which further increases storm surge

We have seen all of these characterizations in the past few hurricane seasons. One of the negative impacts of extreme weather are the long-lasting power outages which increasingly threaten vital infrastructures such as hospitals, police stations, and fire departments. The significant role of solar energy, battery storage, and microgrids to maintain a reliable source of energy to the public during these events is undeniable. At the national security level, solar energy and battery storage are paramount to preparing for the magnitude of future impacts.

Why it Matters?

Impacts to the Economy and Security

The reliability, security, and resilience of the energy system are interconnected with every sector of the U.S. economy and frequent outages would have a critical impact on our economy and national security. At SSF19, industries and utilities came together to explore solutions and opportunities to position solar and battery storage at the center of the energy transition to respond to the impacts of catastrophic events. To meet this goal, smart grid and microgrid technology are presented as a key tool in the integration of storage and renewable energy as well as improving communities’ resiliency.

SSF19 provided a thought-provoking dialogue with some of the most influential and forward-thinking individuals and organizations, centered around solar and energy storage solutions. For example, the Sweatt Chair in Technological Leadership and the Director of the Technological Leadership Institute at the University of Minnesota, Dr. Massoud Amin, discussed how solar storage and microgrids can help create a more resilient energy system. His research has shown that the cost of generating electricity by renewable energy is remarkably cheaper than fossil fuels. The Return on Investment (ROI) related to the project, which utilizes renewable energy to generate electricity, was anticipated to be about a year and a half, Read More.

Dr. Amin argues that domestic policy and customers' engagement are the primary drivers for nations to become fossil-fuel-free. He states:

● “Customers engagement is critical to successful policy implementation to enable end-to-end system modernization”

● If the transformation to a smart grid is to produce real strategic value for our nation and all its citizens, our goals must include: “Enable every building and every node to become an efficient and smart energy node”

In my opinion, the most impactful section of SSF19 was energy security and the necessity of implementing smart grids and storage to ensure eliminating long blackouts and providing reliable sources of energy to the nation. The clearest message delivered at SSF19 was the fact that solar photovoltaics (PV) is playing a key role in the energy system transition. Associated costs have fallen substantially so that solar is now competitive with fossil fuel-fired generation in many parts of the world. Many utilities in the U.S. are investing in solar to generate electricity and they have integrated solar with battery storage and smart grids to handle blackouts and peak demands. For example, the Electric Reliability Council of Texas (ERCOT) CEO, Bill Magness, discussed the impact of implementing renewable energy and battery storage on the Texas grid in this era of rapid innovation in the electric sector. He states triple-digit temperatures across Texas are putting a strain on the state's electric grid system. ERCOT manages the flow of electricity for about 90% of the state's customers and can generate a maximum capacity of about 78,000 megawatts of electricity for peak demand, according to ERCOT. However, in Texas, the strain on the grid was so volatile this summer that wholesale electricity prices spiked to $9,000 a megawatt-hour. Thus, he provided an overview of what elements have been driving solar and storage in the ERCOT market over the last few years.

 Challenges Identified at the Conference?

Several challenges prevent widespread implementation of solar and battery storage in the U.S. The most important one is the lack of policies that favor large deployments of renewable energy and lack of government subsidies to motivate utilities and companies to invest in the renewable energy industry. Despite nations worldwide committing to a reduction in carbon emissions and implementing renewable energy through the Paris Agreement, the fossil fuel industry continues to receive huge amounts of taxpayer funding. However, while the renewable energy price drops significantly, many experts were wondering why subsidies for the fossil fuels industry have increased. In addition, domestic policies are largely responsible for the support of renewable energy. For example, the 30 percent Solar Tax credit (ITC) is due to drop by four percent in 2020. As the solar industry’s tax break is stepping down and the value of the subsidy will fall for three years until it ends for residential solar and permanently drops to ten percent for commercial solar, a lack of favorable long-lasting policies can be identified as one of the biggest challenges for the solar industry. If we want to encourage people to invest in renewable energy, we need long-term stable policies to encourage the public to participate in the carbon reduction plan.

Why It Matters to Customers?

Understanding the increased risks posed by climate change will help people plan for, respond to, and recover from destructive and dangerous weather. Extreme weather and sudden changes to the climate condition are happening now, particularly to those who live in Texas. We have experienced the hottest July on record for our planet and Texas residents have received several energy conservation alerts in the last few months.

Recently, we have seen dramatic increases in demand for installing a solar panel system and battery storage. Since last year, Lighthouse Solar has installed more than 150 Tesla Powerwalls. The battery storage industry is expanding and the need for having backup power during the outage is a necessary part of the sustainable community.

You might wonder why people are so interested in battery storage, lately? They are looking for a secure and stable way to ensure that they will have access to the energy during the heatwave and storms as well as handling blackouts and power outage. At Lighthouse Solar, we are communicating with customers on a daily basis and our customers are very interested in generating their own electricity and to contribute to the carbon-free community. Rooftop solar PV has been a very interesting investment for homeowners and businesses as Austin Energy provided $35,00 incentives to enlarge base savings on the solar power system installation. The need for having backup power during an outage is a necessity for those who are in critical and serious conditions such as geriatric people. On the other hand, as storm-related power outages are getting more frequent, utilities’ old-fashioned distribution system is not capable of responding to catastrophic events and as a result, they have no choice except to shut off the customers’ power to maintain the reliability and safety of their systems. Thus, people have realized the great advantage of generating their own electricity and using battery storage to have backup power during blackouts. Frequent changes in weather, storms, and hurricanes have brought about so many uncertainties to our lives and everyone would prefer to be prepared for any sudden changes.

We are living in a very complex and dynamic environment now. Every aspect of our lives depends on digital technology and so what would happen if we do not have access to electricity even for a few hours?

As communities rely on energy to perform, we need to invest in transitioning our reliance toward a more secure, stable, and affordable source of energy.

Conclusion

Overall, the main key points of the SSF19 can be summarized as follows:

● Solar energy is booming in the U.S. and in 2018, the solar industry generated a $17 billion investment in the American economy.

● Prices as of Q1 2019 are at their lowest levels in history across all market segments. An average-sized residential system has dropped from a pre-incentive price of $40,000 in 2010 to roughly $18,000 today. Recent utility-scale prices range from $28/MWh - $45/MWh, making it competitive with all other forms of generation.

The energy transition is accelerating, empowered by the low price of renewables. Utilities are investing in the solar industry as the ROI is becoming more substantial.

We are in a fascinating phase for the industry. Policymakers in many states are demanding a faster transition to a "clean" energy economy, but the pathway will be challenging. The SSF19 conference showed the importance of integration with energy storage and collaboration with a variety of stakeholders. In conclusion, to meet aggressive state and municipal goals for decarbonization, the pace at which solar and storage projects are deployed will need to increase dramatically. Whose job is it to help incentivize customer adoption? Utilities, solar and storage manufacturers, and the government. I am hopeful these discussions will continue in earnest at all levels to help place solar and storage in the center of the energy transition.




 

A Journey To A Net Zero Energy Home

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Solar Panel System with Battery Storage


As the extreme weather event such as heatwaves, hurricanes, floods, wildfires, drought, and rising sea levels is emerging, rooftop solar panels offer an affordable solution to restore natural systems with renewable, carbon-free energy. Distributed solar offers tremendous potential to reduce our nation’s GHG emissions, and large deployments will also reduce sulfur and mercury pollution while saving approximately 60,000 American lives each year.

One remarkable net zero energy project that had a positive impact on the community, the environment, and our company is the Starkey solar project.

Background

Gil (James) Starkey is co-founder of 350 Austin, a nonprofit organization fighting the climate crisis. He has dedicated his energies to inform people about global warming while personally taking on the climate crisis by shifting his reliance away from fossil fuels and moving toward clean energy with rooftop solar, a battery system, and a fully electric vehicle.

Starkey and his wife Roberta Tsurkahara have been interested in solar and energy conservation for a long time. They had solar on the home prior to their move to Texas and were familiar with the benefits when they purchased their new home in the Mueller neighborhood. Installing another rooftop system seemed like the right thing to do. They have owned their current system for three years now and are contributing to a more fossil-fuel-free world.

Since their home was newly built, they were not certain what their energy needs would be, but they wanted a photovoltaic system projected to offset over 90% of their consumption. After some discussion and number crunching, they concluded a 7.5 kW system would be a good fit. The system produces an average of 10,705 kWh yearly by utilizing 25 LG 300W AC modules. However, the Starkey family has managed to consume less electricity than the average home of its size. The result is they produce more electricity than they use and the family has yet to pay an electric bill. 

This year, with federal incentives scheduled to decline in 2020, the Starkey’s decided to make their next big investment by purchasing an electric vehicle and a battery system. With two Tesla PowerWall batteries, they can manage their entire home electricity consumption and monitor their usage. Battery storage is another tool that helps the Starkey family deal with climate change and manage their way through blackouts.

 

Tesla

Power

Wall

& EV Charger

Customer Interview

I had an opportunity to ask Gil a few questions about his solar journey.

 Nafi: What interested you about going solar initially?

Gil: Having lived most of my adult life in the Boston area, we had no real opportunity for solar power, since we lived in urban condominiums. These buildings ranged from 70-110 years old and were difficult at that time to retrofit for solar.  I became interested in solar when I moved to Austin in 2000 and built a house. Our interest at the time was to limit, as much as possible, our direct impact on the environment. Generating our own electricity was, therefore, appealing.

We were not able to implement solar before returning to New England, this time to an ecovillage in Maine.  We installed solar there for the same reasons we had planned to do so here in Austin.  By the way, we were in mid-coast Maine, where wintertime overnight lows are quite frequently below zero, often 10-15 degrees below zero. Our house was designed to approach the Passive standard, so it was extremely well insulated and faced solar-south to maximize passive heating.  Because of these factors, our home had to be, and was, 100% electric, even in a frigid climate.  Our solar panels enabled us to live very comfortably at nearly net-zero. That experience sold us on solar panels.

By the way, solar panels were cropping up all over Maine on 100 to 150-year-old farmhouses. I was surprised to learn that although Maine receives much precipitation and experiences many cloudy days, it actually receives more sunshine than Germany, where solar panels are ubiquitous.  No wonder Mainers, thrifty New Englanders that they are, were installing solar!

Nafi: How did you choose a solar installer?

 Gil: Having already decided to go solar once we returned to Austin, I began researching companies as soon as we knew where we were going to live.  My research narrowed things down to a few companies and my decision was confirmed when I discovered that our neighborhood had gone through a selection process for a significant solar project a year or so before we moved in.

Nafi: What advice would you give to someone who wants to go solar?

Gil: First of all, it just makes sense from economic, environmental, and climate change perspectives. Texas is absolutely bathed in sunlight. I am baffled that governments and electric utilities do not promote and subsidize solar more strongly. The more solar people install, the fewer utility-grade power generation facilities must be built, and that alone will save utilities hundreds of millions of dollars.

The price continues to plummet. Two years after installing solar in Maine, we purchased a system here that was 40 percent larger, but the net price of the two systems was the same. We (humanity) must move to a zero-carbon economy at warp speed. Global heating is approaching tipping points that once crossed, cannot be reversed. Utilities have traditionally contributed the most greenhouse gases, so widespread solar (and wind) generation is a necessity. It makes sense. Do your research. Find a strong, reputable company, and get a proposal.

 Nafi: Do you have any data on your solar system’s performance you found it interesting to share?

Gil: Our system was intentionally over-engineered because we planned at some point to purchase an electric car. We now have our EV, and I am pleased to report that our solar array is supplying all of our home's electricity, even in summer, plus charging the car. We are effectively off-grid for home and transport. Since installing solar in February 2016, we have not paid any utility bills. That’s right, $0, and we have a substantial credit with Austin Energy.

Without a rooftop solar system, they would have paid approximately $1,243 per year for the electric bill. Moreover, the solar panel system cost will be paid off within 8 years and the total amount of money the household will save within 30 years is estimated at $41,785.


Net Zero Energy Home: Austin,Texas

Net Zero Energy Home: Austin,Texas

Solar+Storage Data Monitoring: a Strong Tool to Manage Usage

 Everyone is familiar with data collection trends and the ways in which information is used and misused; from sabermetrics in baseball to news blasts on Facebook. But when it comes to conserving energy in your home, energy monitoring tools are extremely useful. These tools are available for consumers to monitor the production of their photovoltaic systems and the energy consumption of their home or business.

 The ability to see and use consumption data enables the Starkey’s to make informed decisions about their electricity use— knowledge is power when it comes to conserving energy. Online monitoring tools enable customers to access information from their browser or smart phone. After three years of monitoring, the Starkey system has offset 100% of their home electricity consumption. This could change next year with the additional EV home charging load; time will tell.

The graph illustrates the electricity generation and consumption for two summer days related to the Starkey family solar system. Despite the higher consumption in the summer time and using an EV charger the production still matches what the househol…

The graph illustrates the electricity generation and consumption for two summer days related to the Starkey family solar system. Despite the higher consumption in the summer time and using an EV charger the production still matches what the household demands.

Conclusion

The United States installed 2.7 gigawatts of solar in the first three months of this year, which set a record for the first quarter of a year. In addition, 25 percent solar growth is predicted this year by Wood Mackenzie Power & Renewables institute. According to Renewable Energy World Texas holds great potential to increase renewable energy generation and to integrate distributed solar resources in innovative ways while preserving our deregulated market structure. Collective action is all that is required to move and make Texas green.
If you would like to learn more about Lighthouse Solar services or be a part of the green movement, contact us at Lighthouse Solar for a free estimate and consultant.

Click HERE or call us at (512) 476-5555.

 

- By Nafi Shah & Jay Bramble