Solar Energy Solar Panel Washington DC Solar
Written by Roger Perry

Practical Considerations for a Battery System

As long as I’ve been doing solar, people have been asking about batteries. The response has always been “yes, we can do them, but it will cost a lot”. That usually ended the conversation.

One question to ask is “why do you want batteries?” Do you lose power frequently? If not, a portable generator will keep your refrigerator, freezer, computers, tv and some lights going. Downsides are; noise, fumes, refueling, having to run extension cords to where needed and putting everything away when power comes back. Not too bad once in a while and it’s very cost effective. Just hope you aren’t out of town when power goes out. There is nothing automatic about this set-up.

If you lose power often and don’t want to do the portable generator dance every few months, you can get a permanently installed generator with automatic start. These are close to $5000 installed for the ones that will run most of your house when the power goes out (a larger one can be installed for a few thousand more that will run everything). This is what hospitals and critical buildings use. Power goes out, the generator starts automatically and powers the house with only a momentary loss of electricity.

Downsides? Noisy, they need maintenance and, if propane or diesel powered, they need the fuel tanks to be kept filled.

What if you lose power often, don’t want the noise, maintenance and fuel expense of a generator? What if you want a system that is environmentally friendly, will turn on automatically, is silent, will run pretty much nonstop without refueling? You should look into installing a battery back-up system connected with a solar system.

What are the downsides? Well, cost is one. While not as expensive as in years past, battery back-up systems are still costly. Compared to a permanently installed generator, battery backups tend to run few thousand more. Ask your accountant but you may be able to take the 30% solar tax credit on the additional cost of the batteries. This brings the price in line with a generator.

Another downside is you can’t run everything in your house. Things a battery cannot run for any length of time are air conditioners or heat pumps, electric water heaters, electric dryer or electric ranges. What they can run are gas or solar water heaters, gas or oil boilers, refrigerators, freezers, lights, tvs, computers, fans and pretty much everything else. Well pumps are on the edge depending on how efficient they are. While running a modern variable speed well pump is not an issue, older well pumps require a large startup current which can be too much for the battery to handle. We are about to install a “soft start” control to try and reduce a well pumps surge demand for one of our customers but the jury is still out.

We are now installing LG Chem lithium Ion batteries. LI batteries have a lot of advantages over the old lead acid batteries. The big advantage they have is they are not damaged by running them dead, whereas lead acid batteries do not like being discharged to less than 50% of charge, a Lithium Ion battery will give you it’s full rating. The one we use is rated for 10 Kilowatthour (KWH). A lead acid battery would need to be rated at 20 KHW to achieve the same capacity. Lithium batteries are also much lighter (not that the customer will have to move them) and can be charged much faster.

The big downsize of LI batteries is the upfront cost compared to LA but they will last much, much longer and they are maintenance free.

In a future blog I will discuss the two different ways to interface a solar system with the batteries, AC coupled and DC coupled and the pros and cons of each as well as what a 10 KWH battery will give you as far as run times for various appliances. I’ll also talk about how a battery system can be retrofitted to your existing solar system.

Electric Charging, Solar, Annapolis MD
Written by Lisa Walsh

Solar Systems with Integrated Electric Vehicle Chargers

….like Peas and Carrots

Solar Panel, Solar energy, Annapolis MDAs referenced in our accompanying EV Growth Blogs, the adoption of Electric Vehicles has skyrocketed in recent years. This is small wonder considering EV purchasers can look forward to a 30% federal tax credit on the upfront cost, reduction of fuel costs of at least 60% (according to this Nissan Leaf owner’s calculations), and State Grants/tax credits where applicable (Maryland, for example) and the negation of various oil changes and maintenance costs that accompany an internal combustion engine. For homeowners who have discovered the substantial energy savings by purchasing (not leasing!) a solar residential system, it’s a natural step to want to extend these savings to their current, or future, electrified vehicle.

Ahead of the curve on this natural progression is an innovative new product from inverter manufacturer SolarEdge. All solar systems have two major components 1. Solar panel arrays 2. Inverter(s) that convert incoming DC energy to appliance-ready AC energy. As the national leader in residential inverter supply, SolarEdge made a great move in developing an Inverter that has a built-in EV Charger with a 25’ charge connector. Net energy meter customers (NEM) or energy generating customers interconnected to Pepco are not eligible to apply for the R-PIV rate.

Electric Charging,Solar, Annapolis MD

Why not choose a separate EV Charger?

Four reasons:

  1. Cost. Upgrading to an inverter that has a built-in EV Car Charger comes at around a $1000 cost increase (assuming one inverter/car charger). However, this upgrade – as part of the solar installation – qualifies for the 30% federal tax credit, putting the material cost at around the same as a separate stand-alone EV Charger such as Clipper City. In addition, the integrated inverter has no additional labor or electrician charges – its all covered in the solar install.
  2. Warranty. Popular stand-alone Car Chargers such as Clipper City come with a 3- year warranty. Solar Edge’s integrated inverter has a 12-year warranty, with upgrades up to 25 years available.
  3. Design Elegance. Between service panels, routers, generators and other wall-mounted electronics – its nice to have a 2-in-1 solution and save some wall space. No additional wiring or conduits needed. Of course, the inverter does need to be placed within 25’ of where the EV will be parked nightly.
  4. All Pros no Cons. As with Stand-alone chargers, Solar Edge’s integrated solution allows for indoor/outdoor placement, comes with a 25’ connector and offers software that tracks your EV’s energy consumption that is accessible from desktop or phone, and can be controlled remotely.

Thinking Ahead

Due to the clear advantages, and seeming inevitability of rapid EV adoption by the majority of Americans by the Year 2030, we now ask all of our prospective solar shoppers two questions:

  1. “Do you plan to buy an Electric Vehicle in the not-so-distant future?”
  2. If so, “ What is your expected weekly/annual mileage?”

Mileage calculations inform how many solar panels we should add to the array in order to cover as much EV car use as possible (as roof space allows). Worth noting for our Washington DC/Montgomery County solar customers, PEPCO does require us to fill out an Electrical Usage Calculation Sheet if the solar system is sized over 120% larger than the past 12 months usage history. In those cases we simply submit the estimated kWh increase (as per expected mileage calculations) that the EV will add.

Written by Lisa Walsh

PEPCO Incentives for Electric Vehicle Owners in Maryland and DC

PEPCO has an Electric Vehicle (EV) Program for residential customers in Maryland. It is open to all qualified residents throughout the state. You can participate in the program if your electric vehicle is registered in Maryland.

This program was created to encourage off-peak vehicle charging. The benefits include lower off-peak electric rates for charging during the 16 hours of off-peak hours available Monday through Friday and all day Saturday and Sunday. This policy lightens the load and strain on the electric grid which improves the reliability for everyone. It also encourage the shift to clean energy which will reduce car emissions. And if you choose to charge your car with solar panels, you will achieve an even greater impact.

Another way you can make a difference is by shifting your energy usage to night time. Run your big appliances at night. Wash and dry your clothes at night. Run your dishwasher at night. Again, this will lower the burden on our power plants and it will also lower your electric bill too.

In DC, PEPCO is proposing special incentives to owner’s of electric vehicles. The program will offer lower electric rates to owners of EVs that charge their cars during off-peak hours. Some customers will also qualify for discounts on Level 2 smart charging stations that includes 100% of the cost of installation. For commercial property owners, PEPCO will install charging stations at a discount and they will also install them for free. PEPCO is also planning to install 20 fast charging stations along the main roads and in each Ward and in each quadrant of the city. Finally, PEPCO will be creating a $1,000,000 fund that is designed to provide grants for people and organizations with ideas that can help encourage a greater shift towards electric cars.

Let’s also help PEPCO increase electrification by considering a shift towards renewable sources from solar panels. Please contact us via this website or call us at (410) 923-6090. We have hundreds of installations throughout the Baltimore/Washington/Annapolis area. We look forward to helping you too.

Written by Lisa Walsh

Incentives for Electric and Hybrid Cars in DC

Washington DC’s government is encouraging the ownership of electric and hybrid cars with incentives that will save you time and money. For one, if you own an electric vehicle, you are exempt from emissions testing. If your car emits nothing, there is nothing to test. You simply need to register it with the DMV in DC. And if your car is a hybrid that is both electric and gas powered, you only need to pass a smog test. For questions about this, you can call the DC Department of Motor Vehicles at (202) 737-4404.

Fuel Efficient Cars get Reduced Registration Fees

You can also qualify for a discount on the first-time vehicle registration for a qualifying electric, hybrid or clean fuel vehicle. Their rules state that your car must get at least 40 miles per gallon in city driving. Check www.fueleconomy.gov to see how your car rates. You also must be the original owner of the car. If your car is used, you are eligible for the excise tax exemption. This exemption is the tax you pay upon purchase of a vehicle. So, the exemption can be a nice savings for you.

You might also qualify for federal tax credits. Eligible cars include electric, hybrid, plug-in hybrids, diesels and alternative fuel vehicles. Ask your accountant about how this might benefit you. And another benefit is that your insurance company might offer a discount. If they don’t, you might want to call around to find a carrier that does. These savings can really add up.

And finally, if your business has a fleet of 10 or more clean fuel automobiles, you can qualify for an exemption to the HOV lane. Again, call the DC DMV at (202) 737-4404 to find out about this benefit. Going electric and fuel efficient will put you in the fast lane in so many ways.

And, of course, we are always available to help you power your electric car with solar panels at your home, in your community or at your business. Please contact us if you have questions about generating most, or all, of your energy from solar.

Solar Service,Commercial Solar Service
Written by Lisa Walsh

The Fairytale of the 25 year Solar Workmanship Warranty

Commercial Solar Service,Solar ServiceIf you’re like most solar shoppers, you prefer two or three bids on a substantial home improvement project; enabling you to sanity-check pricing, design options and find the overall best contractor-fit.  Included in these proposal comparisons is the Warranty. Most solar systems come with 3 warranties:

  1. Solar module manufacturer’s warranty; usually 25 – 30 years,
  2. Inverter(s) manufacturer’s warranty; usually 10 – 25 years (inverters convert DC energy to home-accessible AC energy)
  3. Workmanship warranty – entirely separate from 1 & 2 above. This insures the design and installation, insofar as contractor/labor portion of your install is covered for a given period of time, as determined by the installation company.

Industry Standard

As the popularity of solar has increased – so has the number of competing contractors and their accompanying solar proposals. All of these proposals should include a workmanship warranty. What will differ is the duration of the workmanship warranty. The standard duration for a residential solar system was always 5 – 10 years until a couple of years ago when some contractors started offering an unprecedented 25-year workmanship warranty. This is a good thing, right? On paper…sure.

Compete only to Beat

With over 35 years in the solar industry, it’s fair to say we’ve seen a lot of solar installers come and go; especially in the last five years. The go-ing usually brings with it a slew of phone calls to our service department as solar system owners panic about no longer having their contractor around to honor the workmanship warranty; particularly those looking to resolve existing issues. Ironically, these are sometimes homeowners that chose the contractor over us due to a workmanship warranty of shorter duration. We have stuck with the industry-standard of 10 years, whereas some other installers have increased to 25 years to match the manufacturer warranties.

So, the big question – and the reason for this current article is – Why? If some of our competitors are offering a 25-year warranty – why don’t we? Seems only natural, given the fact that we’ve been in business for longer than 99% of them – greatly increasing the probability that we’ll be around to honor an extended workmanship warranty.

The Big Answer (in two parts)

  1. We’re keeping it Real: Understandably, a 25-year workmanship warranty is attractive to a homeowner because – by design – it matches the 25-year solar panel warranty. This does not change the fact that a workmanship warranty exists entirely independent of the installed equipment warranty(s). A contractor’s history, fiscal health and future plans have little or nothing to do with the equipment warranties. Given this, we avoid inflating the language in our contracts to provide misleading comfort to a home or business owner, with the sole purpose of beating out the competition at contract-signing time.
  1. We’re still keeping it Real: Of all the orphaned solar projects we’ve come across – we cannot cite a single known instance where a homeowner has taken legal action over an abandoned workmanship warranty item; simply not worth the court fees or the hassle. Most exert their energy on finding a contractor who will fix the problem as soon as possible and get their solar system restored to full working condition. Hence, the true value of the workmanship warranty is contractor integrity and the likelihood of whether they both intend to and will remain in business to honor their contractual agreement. For most solar contractors, the standard ten-year commitment reflects a realistic forecast of longevity and commitment; avoiding the temptation to head off into fairytale land in order to beat-out the competition.
Written by John Marrah III

Press Release: Ribbon Cutting for SES in Talbot County – Eastern Shore

On Tuesday, February 21, the Talbot County Chamber of Commerce held a ribbon cutting for Solar Energy Service at Hot Desks, located at 7 Goldsborough Street in Easton.

Pictured above include Easton Town Councilman Pete Lesher, Talbot County Chamber of Commerce President/CEO & Easton Town Councilman Alan Silverstein, Bruce Strazza, Sarah Boynton (Midshore Riverkeeper Conservancy), Easton Town Councilman Ron Engle, Adam Shellhamer (BDK, Inc), Sabine Simonson (Talbot County Free Library), Kristin Lockerman (Avery Hall Benefit Solutions), Sue Waite (RAUCH inc.), Cynthia Jurrius (Mid-Shore Mediation),Dane Schriver (1880 Bank), Solar Energy Services Consultant John Marrah III, Dave Wooten (Office of Comptroller of MD), Adam Jones (Shore United Bank), Robin Marrah (Patriot Cruises), Rick Peters (Solar Energy Services), Bill Ewald (RAUCH inc.), Bill Bernard (Eating Easton/Eating St. Michaels), Rod Renner (Renner Management), Jameson Harrington (RAUCH inc.), John Marrah (Patriot Cruises) and Laura Heikes (Shore United Bank).

With over 35 years of solar experience, Solar Energy Services, Inc. (SES) is the regional leader for both residential and commercial solar systems.  We are a full service team providing solar design, installation and lifetime support to all our prospective and existing residential and commercial solar applications including Solar Power (PV)Solar Thermal (Water Heating) and Solar Pool Heating.

Maryland owned and operated SES is proud to announce its commitment to serving Talbot County and the Eastern Shore at large. A resident of St. Michaels, John A. Marrah III is your local resource to education on industry trends, product developments, and emerging technologies in the solar industry. John will advise the right solar installation for a particular project (Solar Power, Solar Thermal, Solar Pool Heating), and will work with the end user to calculate and design the most cost- effective and energy- efficient solar installation for your home or business.

SES’s leadership, administrative and installation teams live locally, hire locally and have deep ties to the regional solar industry as well the communities they serve.  410.226.6212

Written by Lisa Walsh

First Community Solar Project in Washington DC

PRESS RELEASE

For Immediate Release

Tuesday, January 10th 2017

 

Father/Daughter Team Up for DC’s First Community Solar Project

WASHINGTON DC:  January 10th, 2017.  DC Resident Rebecca Mann and her father Neal Mann are poised to be the FIRST two PEPCO customers to take advantage of Washington DC’s newly revised and adopted Community Renewable Energy Facilities of 2016 (CREF).  After a process lasting three years, the District has finally worked out all of the kinks that enable D.C. residents to benefit from solar, even if they can’t put panels on their own roof.  Community solar offers the benefit of solar to community members (subscribers) who can’t, or prefer not to, install solar panels on their homes. This also gives renters an option to purchase solar power.

For the flagship project, Rebecca Mann is unable to install a solar power system due to limited roof space and shading constraints.  Located one mile away – her father, Neal Mann, is currently having a 16.24kW grid-tied solar power system installed.  This will generate enough power to offset a good portion of both his own, as well as his subscribing daughter’s, PEPCO utility bill —  at full retail price.

The project is currently under construction and is poised to be interconnected and officially net-metered by the end of January 2017.

Solar Energy Services, Inc. is one of the region’s longest running solar installation companies.  Founder Roger Perry has been in the solar energy industry for over 35 years.  His partner, Rick Peters, is a current Board member and past President of MDV-SEIA.  Locally owned and operated, SES installs both residential and commercial solar PV (electric), as well as solar thermal (hot water) systems in Washington DC, Maryland and Virginia.

Useful Links

PEPCO’s Green Power Connection and CREF

History of Washington DC’s Community Solar

For further information, contact:

Lisa Walsh 

Solar Energy Services, Inc. 

410-923-6090 X304

443-253-6941 Direct

Lwalsh@solarsaves.net

solar energy, renewable,
Written by Rick Peters

PACE Solar Financing in Maryland and Washington DC

Typical Commercial Challenges

As veterans of the small commercial solar market in this region, we are very familiar with the challenges of financing solar energy systems to this group of property owners.  Small businesses want solar as much or more than any other market segment, but they are capital-constrained like no others so they need affordable financing.

Third party solar developers have been the answer for other markets.  They can easily finance large systems because the cost of assessing the applicant’s credit is well worth the return.  In the case of residential systems, they can use universal tools like credit scores to help manage their risk.  For the small commercial and non-profit market, there hasn’t been a super-attractive  way to finance solar, until now!

Commercial Solar Systems Now Recognized as Public Benefit

Washington DC and Maryland now have laws and programs in place for commercial (and nonprofit) property owners to utilize PACE.  Property Assessed Clean Energy (PACE) is a vehicle that is used to finance energy improvements for buildings.  It operates under the recognition that energy improvements are considered to be a public benefit.  As such, PACE uses the property tax as a vehicle to structure the financing payments – much like we would finance a sewer extension, but in this case specific to one property.

PACE is very appealing to property owners because they can add significant value to their building on a cash-flow-positive basis without personal guarantees or the application of additional debt to the balance sheet.  The financing payment must be less than the savings and it’s paid in the form of a special assessment on the property tax bill over the term of the financing arrangement (5-25 years at competitive rates).  Multiple energy improvements (i.e. lighting, solar, new roof) can be bundled into one financing package.

The best thing about this approach to financing solar is that the property owner will own the system, not a third party.  The property owner gets all of the benefits, including the energy savings, the substantial incentives, the marketing value, and the satisfaction.  All it costs them is the interest on the financing which pales in comparison to the savings.

More info is available on your webpage on our PACE webpage but you may just want to pick up the phone and call us to see if your property is eligible.

solar energy, Solar Service ,Home Solar Panels,
Written by Rick Peters

Press Release: Solar at the Chesapeake Bay Foundation

Press Statement
6-15-15

Solar Service, Home Solar Panels, Chesapeake MDCBF Merrill Center to Install 106 kW Solar System

(ANNAPOLIS, MD) The Chesapeake Bay Foundation (CBF) and Solar Energy Services, Inc. (SES) announced an agreement today for SES to design and build a 106 kW, grid-tied solar photovoltaic system at the Philip Merrill Environmental Center, CBF’s headquarters.

The Merrill Center rooftop solar system will include more than 370 solar panels from US manufacturer SolarWorld, as well as inverter systems from Solar Edge. The panels will be installed primarily on the available roof tops, but the design also calls for some unique solar shade structures to provide additional benefits to the facility and its occupants.

SES president Rick Peters shared that SES is pleased to participate in this marquee project. “I know personally that CBF has led the way on sustainable initiatives in our region for a very long time. It is an honor to be selected to construct this project, which will help advance CBF’s message and their environmental stewardship.”

The solar system is projected to produce more than 133 MWh of electricity annually, enough to power more than 10 average Maryland homes. This will significantly offset the facility’s consumption of traditional electricity.

“While we have had solar panels at the Merrill Center in the past, we are adding this new capacity because it is now more affordable as well as more efficient,” said CBF Vice President Mary Tod Winchester. “The new array will generate enough electricity to provide one third of the power for heating, cooling, and other needs of the more than 100 staff who work here. As a non-profit, we will not benefit from the many tax incentives available, but we encourage other individuals and businesses to closely examine the costs and benefits of adding solar generation.”

The project is expected to be completed before the end of this summer.

About Solar Energy Services, Inc.

Solar Energy Services, Inc. (solarsaves.net) designs, builds and services solar power systems for institutional, commercial, and residential customers. The firm was founded by 37 year solar industry veteran Roger Perry who has longstanding ties to the communities served by SES. Based in Millersville Maryland, the 21 person firm operates in Maryland, DC, and Virginia.

About Chesapeake Bay Foundation

Founded in 1967, the Chesapeake Bay Foundation (www.cbf.org) is the largest independent conservation organization dedicated solely to saving the Bay. Serving as a watchdog, we fight for effective, science-based solutions to the pollution degrading the Chesapeake Bay and its rivers and streams. Our motto, “Save the Bay,” is a regional rallying cry for pollution reduction throughout the Chesapeake’s six-state, 64,000-square-mile watershed, which is home to more than 17 million people and 3,000 species of plants and animals.With offices in Maryland, Virginia, Pennsylvania and the District of Columbia and 15 field centers, CBF leads the way in restoring the Bay and its rivers and streams. Over the last four decades, we have created broad understanding of the Bay’s poor health, engaged public leaders in making commitments to restore the Chesapeake, and fought successfully to create a new approach to cleanup that features real accountability-the Chesapeake Clean Water Blueprint

Residential Solar Panels, Solar Service,Installation
Written by Anonymous

Solar Thermal Energy for The Delano

Residential Solar Panels, Solar Service,Installation

2745 29th Street NW Washington, DC 20008. Photo © Tony Powell. April 17, 2012

WASHINGTON, DC:  The Delano, an upscale Apartment complex in downtown Washington DC, now has a solar thermal system providing a large portion of the building’s hot water supply.

Working in conjunction with Skyline Innovations, a third party solar developer, SES designed and installed a system that will offset a large portion of the building’s conventional gas-powered water heating system.  The solar system consists of 32 solar thermal panels and a 3,200 gallon solar storage tank, as well as a 200 gallon buffer tank.

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