Does Energy Storage Make Sense for Your Home?

If you have ever thought about adding solar to your home, you have probably wondered, “How can I save my solar power to use when the sun is not shining?” Or maybe the last time you experienced a power outage, you thought, “What can I do the next time the power goes out?” Over the past few years, battery storage systems have become a more popular solution for these situations. In Santa Clara, residents can benefit from using battery storage systems in the following ways.

Backup Power

Battery storage provides backup power to keep day‑to‑day conveniences and necessities running. For example, battery storage allows your refrigerator to maintain its temperature during a power outage. This can prevent food from going bad. In emergencies there are various uses for battery storage, such as to provide uninterrupted power for the lights to stay on to keep household members safe. Lessening power downtime can also help prevent disruption for people, such as the elderly, who may depend on electricity for life support and mobility in their homes.

Solar System Pairing

Battery storage can help you maximize your solar system. Batteries are able to store the power your solar panels generate during the day for your home to use later at night. Without a battery, your home will need electricity from the grid when you use power in the evening. Pairing your solar system with a battery is the best way for your home to utilize all of the energy your solar system generates.

Battery Storage Power Options

Power for battery storage does not only have to come from solar. Battery storage can also be charged by the grid. Similar to solar‑powered battery storage, a battery that is charged with power from the grid can be used to provide electricity during a power outage. The concept is similar to that of a portable battery to charge your mobile phone. Whether the source is solar power or the grid, battery storage can provide the same convenience for your home.

Santa Clara residents should carefully evaluate their energy needs and interests when considering battery storage for their homes. For more information, view our previous blog post on the basics of battery storage.

Battery Storage 101: How does it work in the home?

On a stormy night, a tree falls on a nearby power line and you watch as the houses on your street go dark. Your lights go out for a moment and then quickly come back on. Your home continues to buzz with the sounds of the TV, the dishwasher and your refrigerator. In the garage, your energy storage device has noted the outage on the grid and shifted into power delivery mode. This protects your home from the power outage. 

This scene shows the power of battery storage and how it works. While unplanned outages don’t occur often in Santa Clara, storage can be a useful tool for residents with outage‑sensitive needs, such as medical devices. Storage also helps residents avoid being inconvenienced by an outage.  

Battery storage is a type of energy storage system that pairs a lithium‑ion battery (with or without rooftop solar panels) to store energy in your home for later use. Storage devices charge when excess energy is produced. The battery releases the energy when it is desired or most needed, such as during an outage. The stored power can be used as a backup to help lessen outage effects.  

While energy storage can be used for vital backup during an outage, the stored energy can also be used for everyday needs. Residents may choose to use stored power during the evening to increase solar power usage and reduce energy drawn from the grid. 

Residents with energy storage still remain tied to the electric grid for regular service. Stored energy can power the home during an emergency if the battery is charged, but the grid provides power when there isn’t enough energy stored in the battery. For instance, powering appliances such as air conditioners may require more energy than the battery can deliver. 

According to a McKinsey report on battery storage, prices have fallen over 77 percent since 2010. However, the benefits can offset the costs in some cases. Today, storage systems can save customers money if they live in an area with high electricity costs and plenty of sun. Given our low electricity rates, the use of battery storage in Santa Clara may be driven by interest in the technology or by using storage to boost usage of solar power from your rooftop.

 

The Power of Community

Public Power Wee LogoThere are many reasons to celebrate the Santa Clara community and having access to local, high quality electricity service is an important one. Every October, public power utilities, including Silicon Valley Power (SVP), celebrate Public Power Week to recognize over 2,000 utilities across the nation that are community-owned, not-for-profit organizations. Unlike other cities that have to rely on large investor-owned utilities, Santa Clara benefits from having a municipally-owned utility that cares about making our city a rewarding place to live. A local business model makes sure that customers can count on responsiveness and investments in community growth, as well as continued affordable rates ensured by our not-for-profit status.

In addition to being invested in the success of Santa Clara, our team is also a part of the community. Our local expertise allows us to create programs and services that are tailored to the needs of Santa Clara’s residents. Our initiatives include investments in free outdoor Wi-Fi throughout the city, student scholarships, and a Tool Lending Library to contribute to the growth of Santa Clara’s economy and a high quality of life for all residents.

As a public power entity, we are also able to make a direct impact on creating a sustainable future for Santa Clara. When the community began to show interest in renewable energy, we launched Santa Clara Green Power, a 100 percent green power option available to all residents and businesses. We also offer a full suite of energy efficiency rebates for residents and businesses, free home energy audits, and energy efficiency resources for our business customers to help our customers improve the comfort of their homes and facilities while saving energy and money.

Sponsoring and enjoying regular community events is another benefit to our local operations. Each year, we look forward to supporting events that allow our friends and neighbors to connect over local entertainment, such as the annual Fourth of July fireworks and the holiday tree lighting ceremony.

As your locally-owned utility and trusted energy advisor, we’re proud to play an integral role in the Santa Clara community!