FOR MUNICIPALITIES

Community Choice Aggregation Programs

Launch and manage municipal aggregation programs that give your community energy choice, cost savings, and renewable options. Serving 50+ New England municipalities.

STRATEGIC PROCUREMENT

Electricity, Gas & Commodity Hedging

Secure optimal rates and protect your organization from energy price volatility. Licensed in all deregulated states with daily market monitoring and strategic hedging.

CLEAN ENERGY SOLUTIONS

Solar, Efficiency & EV Charging

Rooftop solar, ground-mount installations, efficiency retrofits, and EV charging infrastructure—all with zero upfront costs and maximized utility incentives.

COMPREHENSIVE SOLUTIONS

Complete Energy Management

From procurement to solar to efficiency, we handle every aspect of your energy needs. One partner, one strategy, measurable results. Average savings: 33%.

✓ 50+ Municipalities Served✓ 500+ Commercial Clients✓ $35M+ Total Savings✓ Licensed in All 50 States

50+

Municipalities Served

500+

Commercial Clients

$35M+

Total Client Savings

33%

Average Savings

ENTERPRISE ENERGY INTELLIGENCE

We start by transforming your energy data intomeasurable savings

Real-time monitoring, predictive analytics, and intelligent hedging strategies that help enterprise clients reduce energy costs by up to 30%.

$8.2M

Avg. Annual Savings

30%

Cost Reduction

24/7

Live Monitoring

Energy Management Dashboard

LIVE

CURRENT USAGE

2,847 kW

↑ 12.4% vs yesterday

MONTHLY SAVINGS

$124K

↑ 8.2% vs target

EFFICIENCY SCORE

94.2%

↑ 3.1% this month

PEAK DEMAND

3,421 kW

↓ 5.7% optimized

7-DAY ENERGY CONSUMPTION TREND

How we help you save

Immediate savings on supply. Long-term savings from upgrades. Maximum savings from both.

QUICK START

Fuel Aggregation Programs

We aggregate demand for energy across New England to negotiate wholesale pricing for clients that individual businesses can't access alone.

Typical Savings

10-15%

  • Aggregated wholesale rates across New England
  • 2-minute enrollment, zero fees
  • Clean renewable energy options
  • Your utility handles all billing & service
  • Cancel anytime, no penalties
Compare Rates Now
🔧

MAXIMUM IMPACT

Complete Energy Services

Comprehensive audits, turnkey upgrades, and strategic solutions that transform your facility's energy profile.

Typical Savings

25-40%

  • Holistic facility energy assessments
  • LED lighting & HVAC upgrades
  • Building automation & controls
  • Solar installation & EV charging
  • Utility rebate capture & ongoing monitoring
Schedule Assessment

Selected work

Explore our projects

Municipalities, schools, nonprofits, and enterprise campuses rely on Mill Street to deliver measurable savings and resilient clean-energy infrastructure.

View all case studies
Community

Crispus Attucks

Community center achieves energy independence through comprehensive solar and efficiency upgrades.

Net-zero ready campus

View project
Education

Presentation of Mary Academy

Private school reduces operational costs by 38% while improving sustainability.

38% operating cost reduction

View project
Nonprofit

Greater Boston Food Bank

Critical refrigeration systems optimized for maximum efficiency and cost savings.

24/7 resiliency planning

View project
Youth Services

Lawrence Boys and Girls Club

Complete HVAC replacement across entire facility—23 units upgraded with incentives eliminating $500,000 off total project cost.

Full-site electrification roadmap

View project

Ready to join 550+ smart organizations saving on energy?

From small towns to major facilities across New England, we've delivered $35M+ in energy savings. Let's see what we can do for you.

✓ Free facility assessment (no obligation)✓ Custom savings strategy in 48 hours✓ Clear ROI projections before you commit

Prefer to talk first? (888) 296-0005

Monday-Friday, 8am-6pm EST