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15 lightyears We provide builders and owners clean energy solutions, as well as test, verify, and certify new construction projects.

B Corp Certified Company

Licensed Electrical Contractor: EC13005057 | RESNET Energy Rater | Generac & TESLA Authorized Dealer Our Foundation provides workshops and builds outdoor classrooms for Pre-K to 5th grade kids.

Q4 is when a lot of next year's projects get scoped and budgeted. It's also the easiest time to avoid surprises later.Be...
10/29/2026

Q4 is when a lot of next year's projects get scoped and budgeted. It's also the easiest time to avoid surprises later.

Before numbers are locked in, it helps to know how the building uses energy now, which testing or certification steps the project will need, and what a right-sized solar or storage system actually looks like for that property.

Incentive programs are worth checking too — eligibility and timelines change, so confirm what applies before scope is final rather than assuming last year's rules still hold.

We help builders, developers, and property owners work through all of this early.

Scoping a 2027 project? Reach out and we'll help you plan the energy side early.

(855) 438-1515 · [email protected]

In a typical home with forced-air heating and cooling, ENERGY STAR estimates 20–30% of the air moving through the duct s...
10/28/2026

In a typical home with forced-air heating and cooling, ENERGY STAR estimates 20–30% of the air moving through the duct system is lost to leaks, holes, and poor connections before it reaches a room.

That air was already paid for. The equipment keeps running to make up the difference, and comfort still suffers.

A duct leakage test takes the guesswork out. We pressurize the duct system, measure how much air escapes, and give you real numbers — useful for code compliance, for ENERGY STAR and HERS verification, and before anyone sizes new equipment.

🌎⚡ In honor of National Energy Awareness Month, gere’s how we approach every project, in three steps:📏 Step 1: Measure. ...
10/27/2026

🌎⚡ In honor of National Energy Awareness Month, gere’s how we approach every project, in three steps:

📏 Step 1: Measure.
Testing shows how a building actually uses energy, including air leakage, duct performance, and insulation.

🔧 Step 2: Reduce.
Fix the waste the testing finds, so the building needs less energy to begin with.

☀️ Step 3: Produce.
Size solar and storage to the building’s real demand, not its wasted demand.
Reduce before you produce.

💡Planning a solar or efficiency project? Start with a conversation about how your building uses energy. Link in bio 🔗

Energy incentives at the federal, state, and utility level are shifting fast, and each carries its own eligibility windo...
09/28/2026

Energy incentives at the federal, state, and utility level are shifting fast, and each carries its own eligibility window. Commercial solar tax credits, utility rebates, and local programs won't wait for project timelines to catch up.

We stay current on what's available in your area and help partners pursue what their project may qualify for, before the window closes.

Not sure what your project qualifies for? Let's talk before the window closes.
(855) 438-1515 · [email protected]

Florida's hurricane season peaks in September. Now is the time to check your backup power plan. Whether it's a whole-hom...
09/26/2026

Florida's hurricane season peaks in September. Now is the time to check your backup power plan.

Whether it's a whole-home Generac generator or battery storage paired with solar, the goal is the same: keep essential systems running when the grid doesn't. As a licensed electrical contractor and authorized Generac and Tesla dealer, we size and integrate these systems correctly from day one.

Don't wait for the next storm warning, schedule a backup power consultation today. Link in bio or DM us.

Building or developing a project that needs certification? Send us a message and we'll walk you through what a HERS rati...
09/24/2026

Building or developing a project that needs certification? Send us a message and we'll walk you through what a HERS rating means for your build!

Solar canopies and EV charging are showing up more often in multifamily and commercial development conversations — but t...
09/22/2026

Solar canopies and EV charging are showing up more often in multifamily and commercial development conversations — but the projects that go smoothly are the ones where the electrical and structural groundwork gets planned before design, not after.

A few things worth knowing before you build:
→ Utility interconnection and available electrical capacity often set the real ceiling on system size — not the roof or the parking footprint.
→ A solar canopy is a structural project as much as an electrical one; load requirements shape the design early.
→ Permitting and interconnection timelines can be the longest part of the process, not the installation itself.
→ Incentive eligibility (federal, state, and utility-level) varies by project type and changes on its own schedule — worth confirming before you finalize scope.

We work with developers, property owners, and municipalities as a licensed electrical contractor and authorized Tesla dealer, starting from building science so systems are sized to actual demand rather than oversold or under-built.

We put together a full breakdown of what to plan for before you build — link below in highlight!

Florida's hottest month, when HVAC systems (and bills) are working hardest.Your AC isn't the problem. Your ductwork migh...
08/24/2026

Florida's hottest month, when HVAC systems (and bills) are working hardest.
Your AC isn't the problem. Your ductwork might be.

The U.S. Department of Energy attributes as much as half of a typical home's "total energy use" to its HVAC system; and finds that 30–40% of the air moving through a standard duct system leaks out before it ever reaches a room!

We test and diagnose first, pinpointing exactly where and how much a building is losing, before anyone talks equipment or repairs. Building science before sales, every time.

📞 (855) 438-1515 | 15lightyears.com

It only takes one storm. As a licensed electrical contractor, we design and install battery storage and backup generatio...
08/21/2026

It only takes one storm. As a licensed electrical contractor, we design and install battery storage and backup generation systems built for Florida conditions, so a grid outage doesn't have to mean a business, school, or home going dark.

Storms are unpredictable. Your power shouldn't be.
📞 (855) 438-1515 | [email protected]

As Florida's school districts head back into session, many are already working with us on the energy side.We provide ene...
08/20/2026

As Florida's school districts head back into session, many are already working with us on the energy side.

We provide energy performance testing and compliance verification for school districts and municipalities across the state, helping public buildings run more efficiently on funds that are meant to go further.

Let's talk about your district's next project.
📞 (855) 438-1515

Address

2882 W Lake Mary Boulevard
Lake Mary, FL
32746

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm

Telephone

+18554381515

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