What Redwood Energy does

Redwood Energy is a privately held B2B energy consulting firm headquartered in Arcata, California, founded in 2011 to specialize in all-electric and Zero Net Energy (ZNE) building design. The firm serves affordable housing developers, market-rate residential developers, and California municipalities, delivering Title 24 compliance analysis, California Utility Allowance Calculator (CUAC) work, HERS ratings, GreenPoint Rated certifications, and non-residential acceptance testing on a project-engagement basis. Redwood has cumulatively designed 20,000+ ZNE units and 200+ market-rate all-electric residences, and the firm claims credit for half of California's all-electric residences and roughly one-in-four ZNE residences built in North America between 2011 and 2020.

The company's underlying technology stack is a combination of conventional California-specific compliance and energy modeling tools rather than proprietary AI/ML systems, supplemented by in-house proprietary assets including the Watt Diet Calculator (an Excel-based residential electrification tool) and a Zero Net Energy Design Methodology documented across 10+ published pocket guides and technical reports. Distribution and demand generation are driven primarily by content marketing — a large free research library, an annual Zero Carbon Retreat event (18th edition scheduled for 2026), direct project sales to developers, and reputational capital earned through awards from the U.S. Department of Energy (2015, 2020), the United Nations Habitat program (2017), and PCBC (2016).

Revenue is generated through project-based professional services engagements at undisclosed fee levels. Redwood operates without venture funding, without parent-company ownership, and without disclosed revenue figures; pricing is quote-based and not publicly disclosed. The firm is a member of the Zero Net Energy Coalition and has collaborated with the California Energy Commission on Title 24 and battery storage research, embedding it into the regulatory and standards ecosystem that governs its addressable market.

Name

Redwood Energy

Legal name

Redwood Energy

Website

https://redwoodenergy.net

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

Redwood Energy is a California-based B2B energy consulting firm, founded in 2011, that delivers Title 24 compliance, CUAC utility allowance, HERS, and GreenPoint Rated services to affordable housing developers, market-rate builders, and municipalities pursuing all-electric and Zero Net Energy building design.

Ownership category

akta.pro rank

Product category

Energy Consulting Services

akta.pro primary industry

Decarbonization Strategy & Marginal Abatement Cost Curve (MACC) Advisory (EUABAKAC)

akta.pro secondary industries

Net-Zero Target Setting & SBTi/Net-Zero Standard Support (EUABAKAA), Regulatory & Disclosure Strategy (CSRD/ESRS, ISSB/IFRS S2, SEC, TCFD) (EUABAKAH)

Keywords

• Energy consulting services
• Zero net energy design
• Title 24 compliance
• Utility allowance calculations
• Green building certification

Headquarters

HQ city

Arcata

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Energy Consulting Services: B2B professional consulting services for housing developers, municipalities, and property owners. Services include Title 24 compliance, CUAC utility allowance calculations, HERS ratings, non-residential acceptance testing, and GreenPoint Rated certifications. Revenue is generated through project-based consulting engagements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Redwood Energy provides B2B professional energy consulting services for all-electric and zero net energy building design in California. Engagements cover Title 24 compliance, California Utility Allowance Calculator (CUAC) utility allowance calculations, HERS ratings, non-residential acceptance testing, and GreenPoint Rated certifications for affordable housing, market-rate, municipal, and commercial clients. The firm also publishes a free research library and hosts the annual Zero Carbon Retreat educational event.

Product overview

Redwood Energy is a California-based energy consulting firm that operates as a single unified service offering centered on Zero Net Energy and all-electric building design. The core offering is professional consulting services for residential and commercial building electrification, supplemented by an extensive portfolio of educational publications (pocket guides, research reports, technology briefs) and annual Zero Carbon Retreat events. The company does not offer a software platform but provides free tools like the Watt Diet Calculator. Their publications cover topics including home electrification, commercial retrofits, multifamily construction, electric transportation, and building energy modeling. All services and publications are focused on advancing all-electric, zero net energy construction in California.

Differentiator

Problem solved

Functional benefit

Products and services

• Energy Consulting Services Professional B2B consulting services for all-electric and zero net energy building design in California. Deliverables include California Title 24 compliance documentation, CUAC utility allowance calculations, HERS ratings, non-residential acceptance testing, and GreenPoint Rated certifications for residential, multifamily, municipal, and commercial projects.
• Watt Diet Calculator Proprietary free tool that calculates building energy consumption and electrification requirements for residential properties, supporting analysis of full electrification strategies without service upgrades. Used by Redwood Energy's consulting practice and offered as a public resource.
• Zero Carbon Retreat Events Annual industry retreat events providing education on zero net energy building, home electrification, and building design strategies to industry professionals, with paid ticketing (e.g., via Stripe).

Quantifiable outcome

• Reduced HVAC costs by hundreds of thousands of dollars on $108M Hunters Point project
• +4 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Three partnerships are on record, tiered minor and core.

• Zero Net Energy CoalitionminorOthersMember of the Zero Net Energy Coalition, indicating commitment to the zero net energy building movement and access to industry resources and networking.
• Mercy HousingcoreStrategic or Co-development PartnerCollaborated on the $108M Hunters Point Block 56 project - a 73-unit all-electric affordable housing development in San Francisco. Redwood Energy performed all energy consulting including Title 24, CUAC, HERS, and GreenPoint Rated certifications.
• California Energy CommissionminorOthersPartnered on research including the California Battery Storage report and various Title 24-related research projects. California Energy Commission is a key regulatory body.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• TRC Companies: Large publicly-traded engineering and consulting firm offering energy efficiency, decarbonization, and building performance services. Comparable to Redwood in energy advisory delivery but as part of a broad consulting portfolio spanning many verticals.
• RMI (Rocky Mountain Institute): Large, well-funded clean energy think tank with a dedicated Buildings program covering electrification, codes, and affordable housing. Overlaps with Redwood Energy's decarbonization strategy and policy work but at much greater scale and geographic breadth.
• DNV (Energy Advisory): Global assurance and energy consulting firm with building decarbonization and energy code advisory practices. Overlaps Redwood Energy's decarbonization and verification/auditing work, but with broader geographic and industrial scope.

Direct peers

• Steven Winter Associates: MEP and energy consulting firm specializing in energy-efficient, high-performance, and sustainable buildings, including multifamily housing. Directly comparable service portfolio and similar B2B project-based delivery model to Redwood Energy.
• kW Engineering: Building energy consulting firm offering energy auditing, HERS ratings, Title 24 compliance, and green building certifications—almost identical services to Redwood Energy but with stronger multifamily market-rate exposure beyond California.
• PAE Consulting Engineers: MEP engineering and sustainability consulting firm with deep affordable housing and zero net energy expertise on the U.S. West Coast. Comparable service mix (energy modeling, green building certification, decarbonization planning) and similar B2B consulting delivery.
• New Buildings Institute: Nonprofit focused on zero energy and zero carbon building performance, codes, and policy—directly comparable to Redwood Energy's ZNE/all-electric consulting mission, though operating as a nonprofit advocacy/technical assistance organization rather than fee-for-service consultancy.
• Elementa Engineering: Mechanical engineering and energy consulting firm specializing in zero carbon, all-electric building design for commercial and multifamily projects. Functionally competing with Redwood Energy on ZNE/multifamily engagements.

Emerging players

• Association for Energy Affordability: Nonprofit specializing in energy efficiency and decarbonization for affordable multifamily housing across multiple U.S. states. Closely comparable customer segment (affordable housing developers) and overlap with Redwood Energy's Title 24/CUAC utility allowance work.
• Build It Back Green: Boutique sustainability consultancy focused on zero carbon building design and electrification strategy; comparable in approach and California adjacency though smaller in scale than Redwood Energy.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCJkLEFaRmmCLFNCA56J-s0Q
• Facebookfacebook.com/RedwoodEnergy
• LinkedInlinkedin.com/company/redwood-energy

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Redwood Energy