Should You Purchase a Solar-Ready Battery for Your Home? 5 Energy Storage Considerations for Homeowners


| 3/15/2019 7:03:00 AM


home-rooftop-solar-system

Energy storage technology has existed for quite some time, but the use of solar batteries in residential energy systems is a relatively new development. Although home energy storage prices have fallen significantly in recent years, solar batteries still have a decently hefty price tag and do not make economic sense for every homeowner. However, a solar-plus-storage system can be beneficial in some situations.

Ask yourself the following questions to determine whether or not solar battery storage is the right fit for you and your home.

Are you required to pay time-of-use electricity rates?

If your utility company charges time-of-use rates, this means that the amount you pay for electricity will vary depending on the time of day. During hours when electricity demand is high, typically in the evening and at night, you’ll pay more for power than you would when electricity demand is low, typically during the late morning and early afternoon.

If you are subject to time-of-use billing, a solar battery can be a beneficial investment for you because during the daytime, your solar system will be producing enough energy to both power your home and charge up your battery. Then at nighttime, you’ll be able to use the energy stored in the battery to power your home rather than having to pull from the grid at the higher time-of-use rate.



Does your utility require demand charges?

Some utilities charge customers an additional fee that’s dependent upon how much electricity they use. The fee could be determined by the amount of power used when total electricity demand is high, or it may encompass all electricity used during a month.

barbuto
3/23/2019 11:30:13 AM

i plan on building a small energy efficient house with as much insulation as i can afford approaching passive energy standards. I want a battery storage system...altho it is an expense ( not the TENS of thousands of dollars that the author says) and it is labor intensive with about a 9-10 yr shelf life ( then they must be replaced.)....I want the batteries for the following reasons....1) My utility company, Central Hudson ( in NYs Hudson Valley) is one of the most expensive utilities in the usa....i want to get rid of the expensive electricity by creating my own....2) states that have net metering may stipulate the rates utilities can charge customers. Utilities have lobbied for laws that limit what the home owner can generate...usually u can't have a system that generates more power than u use...Utilities are not dumb. They make money selling power....they don't want to give you any more credits than they must...3) When you have a PV system with grid power....u loose power if the grid goes down, even tho u have power in your batteries...4) Utilities will charge you minimum monthly fees. So even if you generate all the power u need....they charge u for the pole, taxes what ever....5) utility rates can change. Many states that have net metering....the utilities don't credit u at the market rate ( what they charge u for power) but at a lesser rate...again they are not dumb...they want to come ahead...6) the negative issues for a battery bank should not prevent u from getting batteries now. The PV panels and inverters ( micro) are warranted for 20-25 yrs. Now the weakest point is the wet batteries with a 9-10 yr shelf life at best. However in 9-10 yrs you may be able to replace them with dry cell lithium ion batteries. Lithium ion batteries show 90% and better efficiency after being recharged over 1000 times, after 10 years and more. With all the competition making lithium ion batteries....Tesla, Panasonic, China.....etc.....the cost of lithium ion batteries will surly decrease just as the cost of PV modules has decreased 1000x since the 1970s....so buy batteries now replace them with cheap ( at that time) lithium ion batteries in the future....Some people who can aford it buy Tesla power-walls instead of wet battery's but thats out of my expense account....i shall do wet batteries now and dry batteries in 9-10 yrs...its all in the numbers....get out from the thumb of the utilities and the politicos whom they( the utilities) control....


JR23
3/22/2019 5:55:48 PM

first thing to do is cut usage before solar. led lighting and energy drains. but some battery i feel is warneted or separate solar from mains run par of house on main part on sokar. net metering is on the way out too much capacity at time of lower demand 12 noon peak sun 5pm peak load which means you can charge the batteries at day. i still dont know why a simple transfer switch is not included for grid tied not expensive at installation compared to adding later keep the refrigeration working at least




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