Solar guides for real New England homes.
Practical writing on solar, batteries, incentives, and installer quality — by Dan and the Teamsun team. No fluff, no clickbait. The same answers we give customers on the phone.
More from the Teamsun desk.
10 kWh vs 20 kWh Home Battery: What Changes?
Compare 10 and 20 kWh home batteries by usable energy, runtime inputs, power, solar recharge, reserve, aging, expansion, and installed scope.
Dan Katzman
Founder, Teamsun
10 kW Solar System Cost in New England
Evaluate a 10 kW solar system cost through exact DC and AC units, roof and electrical limits, load scenarios, financing, storage, and utility rules.
Dan Katzman
Founder, Teamsun
12 kW Solar System Cost in New England
Test a 12 kW solar system cost against a frozen 10 kW design, roof constraints, future loads, marginal production, and utility rules.
Dan Katzman
Founder, Teamsun
15 kW Solar System Cost in New England
Evaluate 15 kW solar system cost by customer class, exact DC/AC design, load and tariff, roof or ground fit, interconnection, and tax path.
Dan Katzman
Founder, Teamsun
5 kW Solar System Cost in New England
Compare 5 kW solar system cost in CT, MA, and RI by exact DC size, cash scope, roof fit, production inputs, financing, and programs.
Dan Katzman
Founder, Teamsun
6 kW Solar System Cost in New England
Estimate a 6 kW solar system cost in CT, MA, or RI by locking exact module count, roof fit, inverter design, cash scope, and utility inputs.
Dan Katzman
Founder, Teamsun
7 kW Solar System Cost in New England
Evaluate a 7 kW solar system cost by comparing exact nameplate, added roof space, marginal production, cash scope, financing, and utility risk.
Dan Katzman
Founder, Teamsun
8 kW Solar System Cost in New England
Evaluate an 8 kW solar system cost by exact PV design, roof and load fit, cash versus loan terms, storage scope, and utility approval.
Dan Katzman
Founder, Teamsun
AC-Coupled vs DC-Coupled Battery: Which Installation Fits?
Compare AC-coupled vs DC-coupled batteries by retrofit scope, conversion path, clipping, backup behavior, interconnection, service, and expansion.
Dan Katzman
Founder, Teamsun
Add a Tesla Powerwall to an Existing Solar System
Test a Powerwall 3 retrofit with exact equipment, one-line, backup loads, outage behavior, utility amendments, warranty handoffs, and commissioning evidence.
Dan Katzman
Founder, Teamsun
Add Solar Panels for a Heat Pump: An Evidence-First Guide
Add solar for a heat pump only after its exact seasonal electric load, winter peaks, existing system limits, and utility approval are documented.
Dan Katzman
Founder, Teamsun
Add Solar Panels for a New EV
Decide whether to add solar panels for an EV using exact vehicle energy, home-charging share, EVSE load, solar production, and utility evidence.
Dan Katzman
Founder, Teamsun
Can You Add Panels to an Existing Solar System?
Use this fast compatibility test before adding solar panels: identify the exact modules, inverter path, roof capacity, service limits, and approvals.
Dan Katzman
Founder, Teamsun
Solar Battery vs Standby Generator in New England
Compare batteries and standby generators by load, outage duration, fuel, solar recharge, winter reliability, safety, maintenance, and lifecycle scope.
Dan Katzman
Founder, Teamsun
Best Home Batteries for New England Homes: Transparent 2026 Comparison
Compare four current home batteries by usable energy, power, architecture, cold-weather limits, warranty, expansion, backup, and programs.
Dan Katzman
Founder, Teamsun
Best Solar Companies in Connecticut: How to Compare Local Installers
Compare Connecticut solar companies with hard stops, fixed weights, current state records, a dated candidate shortlist, and a property-specific final gate.
Dan Katzman
Founder, Teamsun
Best Solar Companies in Massachusetts: A Homeowner's Comparison Guide
Compare Massachusetts solar companies with a dated candidate set, license gates, weighted evidence, SMART workflow checks, and a final-fit decision.
Dan Katzman
Founder, Teamsun
Best Solar Companies in Rhode Island: Transparent Local Criteria
Compare Rhode Island solar companies with current state lookups, hard stops, fixed weights, a dated shortlist, and a property-specific final gate.
Dan Katzman
Founder, Teamsun
Solar Installation in Boston: 2026 Quote Guide
Compare Boston solar installers using Eversource interconnection, SMART 3.0, city permits, historic review, roof constraints, taxes, and quote evidence.
Dan Katzman
Founder, Teamsun
Bristol Solar Installation: Local Buyer Guide
Compare Bristol solar installers using city permits, July 2026 zoning, Eversource RRES, roof checks, tax rules, and an approval-ready quote checklist.
Dan Katzman
Founder, Teamsun
Solar Installation in Brockton: 2026 Quote Guide
Compare Brockton solar installers by National Grid review, SMART 3.0, permits, roof and electrical scope, financing, taxes, and contract evidence.
Dan Katzman
Founder, Teamsun
How to Choose a Solar Installer in New England
Choose a New England solar installer with a 40-point scorecard for licensing, crew accountability, exact equipment, utility work, contracts, and service.
Dan Katzman
Founder, Teamsun
Best Solar Battery for Cold New England Winters
Compare cold-weather home batteries by operating limits, thermal controls, placement, winter loads, recharge, warranty, and service evidence.
Dan Katzman
Founder, Teamsun
Commercial Solar Carports + EV Charging: Cost and Design Factors
Evaluate a commercial solar carport by mapping parking, foundations, structure, drainage, electrical capacity, EV charging, costs, and phasing.
Dan Katzman
Founder, Teamsun
Commercial Solar Installation Cost: 25 kW to 500 kW Examples
Model commercial solar installation cost for 25–500 kW systems with transparent per-watt inputs, scope adders, tax timing, and quote checks.
Dan Katzman
Founder, Teamsun
Commercial Solar Depreciation and Tax Basis: Questions for Your CPA
Build a CPA-ready commercial solar depreciation file for ownership, basis, placed-in-service, MACRS, bonus, state, and disposition review.
Dan Katzman
Founder, Teamsun
Commercial Solar Financing Options: Cash, Loan, Lease, and PPA
Compare commercial solar cash, loan, lease, and PPA structures by ownership, cash timing, tax review, O&M, site rights, and exit terms.
Dan Katzman
Founder, Teamsun
Commercial Solar Installer in New England: 2026 Buyer Checklist
Use this New England commercial solar installer checklist to compare licenses, engineering, safety, interconnection, contracts, O&M, and references.
Dan Katzman
Founder, Teamsun
Commercial Solar PPA: Questions to Ask Before Signing
Review a commercial solar PPA before signing: audit price, escalator, production, billing, RECs, roof access, defaults, buyout, and removal terms.
Dan Katzman
Founder, Teamsun
Commercial Solar ROI Calculator for New England Businesses
Build a commercial solar ROI model from interval load, tariff, production, financing, tax, maintenance, and downside assumptions you can audit.
Dan Katzman
Founder, Teamsun
Federal Clean Electricity Investment Credit for Commercial Solar
Audit the 2026 Section 48E commercial solar tax credit: timing, ownership, basis, labor, sourcing, bonuses, transfer, filing, and recapture.
Dan Katzman
Founder, Teamsun
How to Compare Solar Companies Without Getting Five Sales Calls
Compare solar companies with a staged three-bid workflow that limits data sharing, controls contact, and keeps every quote on the same inputs.
Dan Katzman
Founder, Teamsun
How to Compare Solar Quotes Apples to Apples
Compare solar quotes on one baseline: design, production, cash and financed cost, ownership, utility approval, risk, warranties, and service.
Dan Katzman
Founder, Teamsun
Solar Installers in Connecticut: A 2026 Buyer Guide
Compare Connecticut solar installers using current RRES rules, verified licenses, complete quote math, crew accountability, and contract evidence.
Dan Katzman
Founder, Teamsun
Solar Installer in Cranston, RI: Programs, Permits, and Quotes
Compare Cranston solar installers using 2026 RI Energy programs, interconnection, City permits, zoning, roof scope, taxes, and quote evidence.
Dan Katzman
Founder, Teamsun
Animal and Critter Damage Under Solar Panels
Triage critter damage under solar panels safely, document electrical and roof evidence, assign wildlife work, and specify a durable repair and guard.
Dan Katzman
Founder, Teamsun
Solar Installation in Danbury, CT: Eversource Quote Guide
Compare Danbury solar installers using current Eversource RRES math, city permits, local zoning, roof scope, tax treatment, and complete quote evidence.
Dan Katzman
Founder, Teamsun
Solar Installer in East Providence, RI: Buyer Guide
Compare East Providence solar installers using RI Energy programs, City permits, roof scope, historic and flood checks, taxes, and contract evidence.
Dan Katzman
Founder, Teamsun
What Monthly Electric Bill Makes Solar Worth Considering?
There is no universal bill cutoff for solar. Rebuild dollars into usage, rates, avoidable charges, load timing, roof production, and full project cost.
Dan Katzman
Founder, Teamsun
Add an Enphase IQ Battery to Existing Solar
Check Enphase battery generations, existing inverters, backup hardware, loads, commissioning, utility approval, and warranty before a retrofit.
Dan Katzman
Founder, Teamsun
Battery Retrofit for Existing Enphase Microinverters
Inventory Enphase microinverters, gateways, service limits, backup loads, controls, utility approvals, and support before choosing a battery retrofit.
Dan Katzman
Founder, Teamsun
Enphase Microinverter Replacement: Warranty, Labor, and Upgrades
Diagnose an Enphase microinverter fault, verify exact-generation compatibility, separate warranty parts from labor, and commission the replacement.
Dan Katzman
Founder, Teamsun
Solar Installation in Fairfield, CT: UI Quote Guide
Compare Fairfield solar installers using 2026 UI RRES rules, Town permits, historic and coastal checks, roof scope, tax treatment, and written quote evidence.
Dan Katzman
Founder, Teamsun
Solar Installation in Framingham: 2026 Quote Guide
Compare Framingham solar installers using Eversource interconnection, SMART 3.0, City permits, roof evidence, local reviews, taxes, and complete quote terms.
Dan Katzman
Founder, Teamsun
Add FranklinWH to an Existing Solar System
Test an aPower 2 retrofit against existing solar, aGate, backup loads, outage behavior, utility amendments, commissioning, warranty, and service ownership.
Dan Katzman
Founder, Teamsun
FranklinWH vs Enphase IQ Battery: 2026 aPower S vs 10C Comparison
Compare FranklinWH aPower S and Enphase IQ Battery 10C by power, architecture, retrofit fit, controls, warranty, winter siting, and programs.
Dan Katzman
Founder, Teamsun
Solar Installation in Greenwich: Eversource & Permits
Compare Greenwich solar installers using 2026 Eversource RRES rules, Town permits and fees, historic and site reviews, roof scope, and complete quotes.
Dan Katzman
Founder, Teamsun
Solar Installer for Historic Homes in New England
Compare solar installers for a historic home by checking designation, review scope, roof evidence, reversible design, permits, and contract safeguards.
Dan Katzman
Founder, Teamsun
Solar Installers With In-House Electricians: Why It Matters
A solar installer with in-house electricians can reduce handoffs when licensed employees own design, permits, panel work, commissioning, and service.
Dan Katzman
Founder, Teamsun
Solar Inverter Replacement Cost and Options
Price a solar inverter replacement by confirmed fault, exact compatibility, labor, access, permits, utility review, warranty, and commissioning scope.
Dan Katzman
Founder, Teamsun
Solar Installer in Lowell, MA: Buyer Guide
Compare Lowell solar installers using National Grid interconnection, SMART 3.0, City permits, historic review, roof scope, taxes, and quote evidence.
Dan Katzman
Founder, Teamsun
Manufacturing Facility Solar: Demand, Roof, and Production Economics
Evaluate manufacturing solar against interval load, demand charges, process risk, electrical capacity, roof constraints, safe staging, and future expansion.
Dan Katzman
Founder, Teamsun
How Much Do Solar Panels Cost in Massachusetts in 2026?
Model Massachusetts solar cost in 2026 by separating cash PV, site adders, financing, tax, SMART 3.0, net metering, and utility risk.
Dan Katzman
Founder, Teamsun
Massachusetts Solar Installers: 10 Checks
Compare Massachusetts solar installers by SMART 3.0, net metering, utility interconnection, licenses, quote assumptions, and long-term service.
Dan Katzman
Founder, Teamsun
Solar Payback Period in Massachusetts: SMART 3.0 and Net Metering
Calculate Massachusetts solar payback using audited bills, SMART 3.0 evidence, net-metering credits, lifecycle costs, and sensitivity cases.
Dan Katzman
Founder, Teamsun
Solar Installer in Meriden, CT: RRES Adders and Permits
Compare Meriden solar installers using 2026 Eversource RRES adders, City permit rules, roof evidence, current taxes, and quote safeguards.
Dan Katzman
Founder, Teamsun
Solar Installer in Middletown, CT: Permits, RRES, and Quotes
Compare Middletown solar installers using current Eversource RRES rules, City permits, land-use checks, roof scope, 2026 taxes, and quote evidence.
Dan Katzman
Founder, Teamsun
Solar Installer in Milford, CT: UI Buyer Guide
Compare Milford solar installers using UI RRES rates, city permits, coastal and historic reviews, roof checks, 2026 taxes, and complete quote math.
Dan Katzman
Founder, Teamsun
Multifamily Solar Installation: Master Metering and Tenant Benefits
Evaluate multifamily solar by mapping master and unit meters, roof rights, utility credit pathways, tenant benefits, billing, and long-term ownership.
Dan Katzman
Founder, Teamsun
Municipal and School Solar Procurement Checklist
Build an auditable municipal or school solar RFP, evaluation, award, construction, and closeout process for Connecticut, Massachusetts, or Rhode Island.
Dan Katzman
Founder, Teamsun
Solar Installation in New Bedford, MA: Eversource, SMART, and Quotes
Compare New Bedford solar installers by Eversource interconnection, SMART 3.0, City permits, roof and meter scope, contracts, and closeout proof.
Dan Katzman
Founder, Teamsun
Solar Installation Cost in New England: 2026 Buyer Guide
Compare solar installation cost in Connecticut, Massachusetts, and Rhode Island with a scope-first worksheet built for real 2026 quotes.
Dan Katzman
Founder, Teamsun
Best Solar Installers in New England: A Transparent Evaluation Framework
Evaluate New England solar installers with published eligibility gates, weighted evidence, a dated shortlist, correction policy, and final-fit check.
Dan Katzman
Founder, Teamsun
Nonprofit Solar Financing and Ownership Options
Compare nonprofit solar ownership, debt, C-PACE, PPA, lease, grants, donations, elective pay, governance, and exit responsibilities.
Dan Katzman
Founder, Teamsun
Solar Installer in Norwalk, CT: Utilities, Permits, and Quotes
Compare Norwalk solar installers using your actual electric utility, current 2026 program rules, city permits, roof constraints, and complete quote math.
Dan Katzman
Founder, Teamsun
Office Building Solar: ROI, Roof, and EV Charging
Use an office-specific gate for solar ROI, roof and HVAC risk, tenant meters, EV charging, interconnection, claims, and procurement.
Dan Katzman
Founder, Teamsun
Upgrade a 10-Year-Old Solar System
Upgrade an old solar system only after performance, roof, equipment, warranty, electrical, utility, and lifecycle evidence identifies the right scope.
Dan Katzman
Founder, Teamsun
Solar Panel Price vs Total Installed System Cost
Compare a solar panel's unit price with the full cost of a designed, permitted, installed, commissioned, interconnected, and supported system.
Dan Katzman
Founder, Teamsun
Solar Installation in Pawtucket: 2026 Quote Guide
Compare Pawtucket solar installers using RI Energy grid screening, 2026 solar programs, City permits, historic and flood review, roof evidence, and contract terms.
Dan Katzman
Founder, Teamsun
Questions to Ask a Solar Company Before Requesting a Quote
Ask a solar company these evidence-based questions before requesting a quote, then use proceed, pause, and stop signals to judge every answer.
Dan Katzman
Founder, Teamsun
Retail Building Solar: Tenant, Roof, and Utility Considerations
Evaluate retail solar by mapping meters, landlord and tenant rights, roof constraints, utility rules, customer access, and benefit ownership.
Dan Katzman
Founder, Teamsun
How Much Do Solar Panels Cost in Rhode Island in 2026?
Compare Rhode Island solar cost in 2026 with a gross-price worksheet that separates property work, financing, and current program paths.
Dan Katzman
Founder, Teamsun
Solar Installers in Rhode Island: Quotes, Programs, and Local Crews
Compare Rhode Island solar installers by checking registrations, quote assumptions, RI Energy program choices, interconnection work, and service.
Dan Katzman
Founder, Teamsun
Solar Payback Period in Rhode Island: Net Metering vs RE Growth
Compare Rhode Island solar payback under Net Metering and RE Growth with separate cash-flow ledgers, current tariffs, and no double counting.
Dan Katzman
Founder, Teamsun
How Roof Complexity Changes the Cost of Solar
Learn how roof geometry, access, condition, attachments, obstructions, layout, and unresolved conditions change solar scope before they change price.
Dan Katzman
Founder, Teamsun
Selling a Home With Owned Solar Panels
Build an owned-solar closing dossier, verify title and warranties, document production and repairs, and hand the system to the buyer cleanly.
Dan Katzman
Founder, Teamsun
Solar Installation Companies That Also Install Batteries
Choose a solar and battery installation company by testing system integration, commissioning, utility ownership, warranties, and long-term service.
Dan Katzman
Founder, Teamsun
Solar Battery Installer Near Me: How to Compare Storage Contractors
Compare a solar battery installer by licenses, load design, exact equipment, permits, warranty labor, commissioning, programs, and service.
Dan Katzman
Founder, Teamsun
Solar Company Reviews: What to Verify Before You Sign
Audit solar company reviews by legal entity, project phase, recency, complaint patterns, public records, references, and contract protections.
Dan Katzman
Founder, Teamsun
Solar Contractor vs Solar Sales Dealer: Who Actually Builds the System?
Map a solar dealer, contractor, installer, electrician, utility applicant, warranty provider, and service owner before signing a New England contract.
Dan Katzman
Founder, Teamsun
Solar Cost for a Home With a $150 Monthly Electric Bill
Turn a $150 electric-bill label into a 12–24-month usage record, exact small-system design, normalized cost, utility route, and proceed-or-defer decision.
Dan Katzman
Founder, Teamsun
Solar Cost for a Home With a $250 Monthly Electric Bill
A $250 electric bill cannot size solar. Rebuild usage, rates, seasonal loads, roof fit, utility credits, and full cash or finance cost first.
Dan Katzman
Founder, Teamsun
Solar Cost for a Home With a $400 Monthly Electric Bill
A $400 bill cannot size or price solar. Diagnose load, rates, meters, efficiency, site capacity, interconnection, and full project scope first.
Dan Katzman
Founder, Teamsun
Solar Installation Cost Breakdown: Equipment, Labor, and Soft Costs
Reconstruct a solar price across equipment, labor, soft costs, financing, adders, closeout, and change risk without mistaking a model for a quote.
Dan Katzman
Founder, Teamsun
Solar Cost and Savings Calculator for CT, MA, and RI
Use a fillable solar cost calculator specification that validates bills, design, cash scope, financing, utility programs, and lifecycle assumptions.
Dan Katzman
Founder, Teamsun
How Much Do Solar Panels Cost in Connecticut in 2026?
Compare Connecticut solar cost with dated public benchmarks, cash and finance worksheets, RRES routing, adders, and a project-specific decision gate.
Dan Katzman
Founder, Teamsun
How to Read Cost per Watt on a Solar Quote
Calculate solar quote cost per watt on a gross cash, solar-only, DC basis—then test financing, adders, production, scope, and service value.
Dan Katzman
Founder, Teamsun
Solar EPC vs Installer: What Homeowners Are Actually Hiring
Compare a solar EPC vs installer by design, procurement, construction, commissioning, utility, warranty, and service scope—not the company label.
Dan Katzman
Founder, Teamsun
Why Every Solar Quote Should List Exact Equipment Model Numbers
A solar quote should name every exact panel, inverter, racking, battery, and electrical model so you can verify design, price, compatibility, and warranty.
Dan Katzman
Founder, Teamsun
Is Solar Worth It With Today's Interest Rates?
Test whether solar financing is worth it using exact APR, fees, payment terms, cash flow, liquidity, PPA, and delay comparisons—not a market-rate guess.
Dan Katzman
Founder, Teamsun
Solar Inspection Before Buying a Home With Panels
Use this solar inspection before buying a house dossier to verify ownership, records, production, roof, electrical condition, transfers, and closing duties.
Dan Katzman
Founder, Teamsun
What to Do When Your Solar Installer Goes Out of Business
Recover an orphaned solar system by confirming ownership, securing records, restoring utility and monitoring access, and vetting replacement service.
Dan Katzman
Founder, Teamsun
How to Verify a Solar Installer's License, Insurance, and Certifications
Verify a solar installer's license, insurance, and certifications with official New England lookups before you sign a contract or pay a deposit.
Dan Katzman
Founder, Teamsun
Solar Installer vs EnergySage: Which Buying Route Is Better?
Compare a direct solar installer vs EnergySage on quote choice, privacy, accountability, site accuracy, warranties, and New England buyer protections.
Dan Katzman
Founder, Teamsun
Solar Inverter Error Codes: Repair or Warranty Claim?
Capture solar inverter error codes safely, route them through the correct manufacturer, and compare repair, warranty, labor, and replacement scope.
Dan Katzman
Founder, Teamsun
Roof Leak Under Solar Panels: Who Should Inspect It?
Use this safety-first inspection sequence to route a roof leak under solar panels to a roofer, solar technician, electrician, engineer, or insurer.
Dan Katzman
Founder, Teamsun
Transfer a Solar Lease or PPA When Selling a Home
Coordinate a residential solar lease or PPA transfer with the provider, buyer, lender, title team, utility, and closing documents using an auditable workflow.
Dan Katzman
Founder, Teamsun
Solar System Not Producing Enough Power: Diagnostic Guide
Prove solar underproduction before paying for repairs. Compare expected and actual output, separate data gaps from faults, and quote safe service.
Dan Katzman
Founder, Teamsun
Solar Maintenance Company Near Me: Service Scope Guide
Compare solar maintenance companies by inspection scope, monitoring, cleaning triggers, safety, warranty records, exclusions, and written deliverables.
Dan Katzman
Founder, Teamsun
Solar Maintenance Cost in New England
Budget CT, MA, or RI solar maintenance by service scope, access, warranties, repairs, and closeout using a no-double-count quote worksheet.
Dan Katzman
Founder, Teamsun
Solar Monitoring App Not Working: When to Call for Service
Separate a solar app outage from internet, gateway, meter, inverter, grid, and true production faults before booking the right service call.
Dan Katzman
Founder, Teamsun
Solar Only vs Solar + Battery: Which Quote Fits Your Goals?
Compare solar only vs solar plus battery quotes by production, outage scope, architecture, gross price, financing, programs, and retrofit risk.
Dan Katzman
Founder, Teamsun
Solar Panel Replacement: Can You Swap One Module?
Learn when one solar module can be replaced, what must match electrically and mechanically, and what to verify before returning the array to service.
Dan Katzman
Founder, Teamsun
Solar Payback Period in Connecticut: How to Calculate It in 2026
Calculate Connecticut solar payback with an auditable cash-flow worksheet for Eversource or UI bills, 2026 RRES choices, lifecycle costs, and sensitivity tests.
Dan Katzman
Founder, Teamsun
Solar Payback With Cash vs. Loan vs. PPA
Compare solar payback with cash, a loan, or a PPA using complete cash flows, current 2026 tax rules, contract costs, and downside scenarios.
Dan Katzman
Founder, Teamsun
Are Permitting and Interconnection Fees Included in a Solar Quote?
A solar quote should state which permit and interconnection fees are included, allowed, excluded, refundable, or subject to a written change order.
Dan Katzman
Founder, Teamsun
Solar Cost per Watt in New England: What a Fair Quote Includes
Normalize solar cost per watt in Connecticut, Massachusetts, and Rhode Island by scope, cash basis, design, adders, financing, and data source.
Dan Katzman
Founder, Teamsun
What Should Be Included in a Solar Quote?
A complete solar quote identifies the design, equipment, production assumptions, cash and financed prices, utility path, scope, milestones, and warranties.
Dan Katzman
Founder, Teamsun
Why a Solar Quote Expires—and What Can Change
Learn why a solar quote expires, which inputs may change, what should stay fixed after signing, and how to verify a revised price without pressure.
Dan Katzman
Founder, Teamsun
Solar Quote Line Items: Equipment, Labor, Permits, and Adders
Audit solar quote line items with a scope ledger for equipment, labor, permits, adders, allowances, exclusions, financing, changes, and closeout.
Dan Katzman
Founder, Teamsun
Solar Quote Red Flags That Should Stop You From Signing
Spot solar quote red flags, rank their severity, request proof, set correction milestones, and know when to pause or walk away before signing.
Dan Katzman
Founder, Teamsun
Solar-Ready Roof Checklist for Homeowners
Use this solar-ready roof checklist to organize covering, deck, attic, shade, structure, attachments, electrical paths, warranties, and bids.
Dan Katzman
Founder, Teamsun
Solar Panel Removal and Reinstallation Cost for Roof Work
Learn what drives solar detach-and-reset cost, how to preserve equipment and warranties, and what a complete roof-work proposal should include.
Dan Katzman
Founder, Teamsun
Solar Repair Company Near Me: Cross-Brand Service Guide
Find a solar repair company by checking ownership, warranties, monitoring access, parts, manufacturer support, licenses, and diagnostic scope.
Dan Katzman
Founder, Teamsun
Repower a 15- to 20-Year-Old Solar System
Compare repair, partial repower, full replacement, roof coordination, approvals, lifecycle scope, and safe retirement for an older solar system.
Dan Katzman
Founder, Teamsun
Who Pays for a Roof Leak After Solar Installation?
Who pays for a solar roof leak depends on its cause, contract, warranties, ownership, and insurance. Use this evidence-first response plan.
Dan Katzman
Founder, Teamsun
Solar and Roofing Company Near Me: 12 Checks
Find a solar and roofing company near you by verifying both trade scopes, one accountable contract, permits, insurance, warranties, and local project proof.
Dan Katzman
Founder, Teamsun
Solar + Roofing Quote Checklist: Compare Both Scopes
Compare solar and roofing proposals with separate scopes, exact materials, change rules, warranty owners, milestones, and one combined bid worksheet.
Dan Katzman
Founder, Teamsun
Solar Inspection After a Storm, Hail, or Lightning Event
Use this safety-first solar storm inspection guide to document hail, wind, lightning, flood, battery, roof, and production concerns before repair.
Dan Katzman
Founder, Teamsun
Solar System Expansion: When Can You Add More Capacity?
Expand an existing solar system only after the load, equipment, roof, electrical service, export rules, tariffs, warranties, and approvals all pass.
Dan Katzman
Founder, Teamsun
Help With a Solar Warranty Claim From Another Installer
Build a solar warranty claim with exact product records, qualified diagnosis, manufacturer authorization, cost gaps, replacement controls, and closeout tests.
Dan Katzman
Founder, Teamsun
How to Compare Solar Installer Warranties
Compare solar installer warranties by separating equipment, labor, roof, production, and service coverage, then test each quote against real claims.
Dan Katzman
Founder, Teamsun
Solar Cost After the Residential Federal Tax Credit Ended
Compare solar cost without the federal tax credit by normalizing gross price, ownership, financing, state programs, contracts, and risk in 2026.
Dan Katzman
Founder, Teamsun
Is Solar Worth It in Connecticut After the Residential Federal Credit Ended?
Decide whether Connecticut solar is worth it in 2026 using property, roof, utility, ownership, lifecycle, transfer, and downside evidence gates.
Dan Katzman
Founder, Teamsun
Is Solar Worth It If You Plan to Move in 5 to 10 Years?
Test solar against a five- or ten-year move using payoff, transfer, roof, program, service, and sale-document evidence—not an assumed resale premium.
Dan Katzman
Founder, Teamsun
Is Solar Worth It in Rhode Island in 2026?
Decide whether Rhode Island solar is worth it using your roof, utility path, ownership, financing, move horizon, and a documented downside test.
Dan Katzman
Founder, Teamsun
Is Solar Worth It in Massachusetts in 2026?
Decide whether Massachusetts solar is worth it using roof, utility, SMART 3.0, ownership, bill, move, outage, and downside evidence gates.
Dan Katzman
Founder, Teamsun
Battery Retrofit for an Existing SolarEdge System
Inventory your SolarEdge inverter, optimizers, monitoring, backup loads, utility approval, and warranty before choosing a battery retrofit path.
Dan Katzman
Founder, Teamsun
SolarEdge Inverter Replacement and Upgrade Options
Compare SolarEdge inverter RMA, compatible successor, repower, and redesign paths using exact models, optimizers, records, approvals, and acceptance tests.
Dan Katzman
Founder, Teamsun
Solar Installer in Somerville, MA: Buyer Guide
Compare Somerville solar installers using SMART 3.0, Eversource interconnection, city permits, roof limits, electrical scope, costs, and 2026 taxes.
Dan Katzman
Founder, Teamsun
Solar Installation in Stamford: Costs & Permits
Compare Stamford solar installation costs, Eversource RRES options, city permits, roof checks, 2026 taxes, interconnection, and installer quotes.
Dan Katzman
Founder, Teamsun
Tesla Powerwall 3 vs Enphase IQ Battery 10C: 2026 Comparison
Compare Powerwall 3 and Enphase IQ Battery 10C by architecture, power, expansion, backup hardware, winter siting, warranty, and service.
Dan Katzman
Founder, Teamsun
How Solar Quotes Model Future Utility Rate Increases
Audit a solar quote's utility-rate escalation, bill baseline, export value, load, degradation, financing, and net-savings assumptions before signing.
Dan Katzman
Founder, Teamsun
Solar Installer in Waltham, MA: 2026 Quote Guide
Compare Waltham solar installers using SMART 3.0, Eversource interconnection, City permits, roof scope, taxes, and verifiable quote evidence.
Dan Katzman
Founder, Teamsun
Warehouse Solar Installation: Roof, Load, and ROI Checklist
Evaluate warehouse solar installation with an evidence-based checklist for load, tariff, roof, structure, interconnection, property rights, and operations.
Dan Katzman
Founder, Teamsun
Best Battery for Whole-Home Backup
Compare whole-home batteries by usable kWh, continuous and motor-start power, 120/240 V design, load controls, solar recharge, and reserve.
Dan Katzman
Founder, Teamsun
Whole-Home Backup vs Essential-Loads Backup
Compare whole-home and essential-load battery backup by circuits, running and start power, usable kWh, load controls, solar recharge, and failure plans.
Dan Katzman
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Compare Woonsocket solar quotes using RI Energy programs, grid screening, City permits, property constraints, credentials, and contract evidence.
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Stacking solar incentives in Connecticut: Federal ITC + CT ESS + RRES Netting in 2026
The four-layer incentive stack for Connecticut homeowners installing solar with battery storage in 2026 — how it works, what each layer pays, and a worked example on a typical $30K install.
Dan Katzman
Founder, Teamsun
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